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High school physics

Looking for high school physics material, unit 1: one-dimensional motion, unit 2: forces and newton's laws of motion, unit 3: two-dimensional motion, unit 4: uniform circular motion and gravitation, unit 5: work and energy, unit 6: linear momentum and collisions, unit 7: torque and angular momentum, unit 8: simple harmonic motion, unit 9: waves, unit 10: sound, unit 11: static electricity, unit 12: dc circuits.

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Jacobs Physics

Resources for teachers and students of introductory physics

30 September 2018

• My week-long kinematics approach, including the facts

4 comments:

Greg- I am inspired to drastically shrink my own AP class' kinematics curriculum . Gaming out how that would impact my current other units, do you consider this coverage to also include projectile motion? Or do you discuss this later? Or not at all since projectiles seem to have a negligible effect on the AP exam? Thanks!

Ryan, I do cover projectiles, in an additional one or two classes. For my upperclassmen, I begin the year with a week or so of equilibrium problems - thus, they know how to break a force into components. So projectiles become a review of this process, since they need to break velocity into components. And once they can break velocity into components, projectile kinematics becomes just an extension of one-dimensional kinematics. (For my 9th grade, I start the year with kinematics, and THEN I move into equilibrium and N2L. So, I come back to projectiles after we finish discussing N2L problem solving. The same pedagogical principle applies, though, that we're reviewing the idea of breaking a vector into components, but in context.

Hi Greg, I absolutely love your blog - as a 10 year veteran aspiring AP Physics teacher.. heh heh.. I am always looking for new hacks, tweaks, and general ways to get better. I have been trying to move toward inquiry and have had a bit of success in lab, and I love the philosophy of engaging the students in hands on work and demos as much as possible. I am feeling a sense of eager exhilaration and freedom at the possibility of reducing my formal treatment of kinematics to a mere two weeks, but I'm wondering about handing my students a sheet of facts - as you alluded to above, it feels a bit like it flies in the face of wanting them to build a deeper understanding. Can you maybe say a little more about how you revisit this later to build the enduring understanding? It is something you do deliberately, or does it just come from the study of later topics organically? I'm trying to see the flow as it comes up later - maybe unbalanced forces - for example, would you then look at the motion and have them sketch graphs commensurate with a given scenario? Or something like that?

Lisa, it’s organic... I guess the best way to think about it is that kinematics becomes fair game as part of any physics problem that comes up. The N2L practice requires a reinforcement of the definition of acceleration, and then of kinematics. So many problems use kinematics to find acceleration, and then N2L to find the value of a force; or vice-versa. That right there is a “review”. Projectile motion is next, which is just kinematics but twice. Circular motion allows us to consider the conditions under which we can use “speed = distance / time”. Momentum problems often have a kinematics component, say after or before a collision. Our labquests produce velocity- and position-time graphs, which must be read in order to get useful data out; and we use these for momentum, energy, all kinds of labs. Lots of opportunities. Each time, the students have to use their fact sheet and their (originally hesitant) skill in kinematics problem solving to do kinematics *in context*, not just as something Mr. Jacobs told them to do for homework. An so the concepts stick. By year’s end, kinematics is second nature.

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Sat / act prep online guides and tips, how to do homework: 15 expert tips and tricks.

Coursework/GPA

Everyone struggles with homework sometimes, but if getting your homework done has become a chronic issue for you, then you may need a little extra help. That’s why we’ve written this article all about how to do homework. Once you’re finished reading it, you’ll know how to do homework (and have tons of new ways to motivate yourself to do homework)!

We’ve broken this article down into a few major sections. You’ll find:

• A diagnostic test to help you figure out why you’re struggling with homework
• A discussion of the four major homework problems students face, along with expert tips for addressing them
• A bonus section with tips for how to do homework fast

By the end of this article, you’ll be prepared to tackle whatever homework assignments your teachers throw at you .

So let’s get started!

How to Do Homework: Figure Out Your Struggles 

Sometimes it feels like everything is standing between you and getting your homework done. But the truth is, most people only have one or two major roadblocks that are keeping them from getting their homework done well and on time. 

The best way to figure out how to get motivated to do homework starts with pinpointing the issues that are affecting your ability to get your assignments done. That’s why we’ve developed a short quiz to help you identify the areas where you’re struggling. 

Take the quiz below and record your answers on your phone or on a scrap piece of paper. Keep in mind there are no wrong answers! 

1. You’ve just been assigned an essay in your English class that’s due at the end of the week. What’s the first thing you do?

A. Keep it in mind, even though you won’t start it until the day before it’s due  B. Open up your planner. You’ve got to figure out when you’ll write your paper since you have band practice, a speech tournament, and your little sister’s dance recital this week, too.  C. Groan out loud. Another essay? You could barely get yourself to write the last one!  D. Start thinking about your essay topic, which makes you think about your art project that’s due the same day, which reminds you that your favorite artist might have just posted to Instagram...so you better check your feed right now. 

2. Your mom asked you to pick up your room before she gets home from work. You’ve just gotten home from school. You decide you’ll tackle your chores: 

A. Five minutes before your mom walks through the front door. As long as it gets done, who cares when you start?  B. As soon as you get home from your shift at the local grocery store.  C. After you give yourself a 15-minute pep talk about how you need to get to work.  D. You won’t get it done. Between texts from your friends, trying to watch your favorite Netflix show, and playing with your dog, you just lost track of time! 

3. You’ve signed up to wash dogs at the Humane Society to help earn money for your senior class trip. You: 

A. Show up ten minutes late. You put off leaving your house until the last minute, then got stuck in unexpected traffic on the way to the shelter.  B. Have to call and cancel at the last minute. You forgot you’d already agreed to babysit your cousin and bake cupcakes for tomorrow’s bake sale.  C. Actually arrive fifteen minutes early with extra brushes and bandanas you picked up at the store. You’re passionate about animals, so you’re excited to help out! D. Show up on time, but only get three dogs washed. You couldn’t help it: you just kept getting distracted by how cute they were!

4. You have an hour of downtime, so you decide you’re going to watch an episode of The Great British Baking Show. You: 

A. Scroll through your social media feeds for twenty minutes before hitting play, which means you’re not able to finish the whole episode. Ugh! You really wanted to see who was sent home!  B. Watch fifteen minutes until you remember you’re supposed to pick up your sister from band practice before heading to your part-time job. No GBBO for you!  C. You finish one episode, then decide to watch another even though you’ve got SAT studying to do. It’s just more fun to watch people make scones.  D. Start the episode, but only catch bits and pieces of it because you’re reading Twitter, cleaning out your backpack, and eating a snack at the same time.

5. Your teacher asks you to stay after class because you’ve missed turning in two homework assignments in a row. When she asks you what’s wrong, you say: 

A. You planned to do your assignments during lunch, but you ran out of time. You decided it would be better to turn in nothing at all than submit unfinished work.  B. You really wanted to get the assignments done, but between your extracurriculars, family commitments, and your part-time job, your homework fell through the cracks.  C. You have a hard time psyching yourself to tackle the assignments. You just can’t seem to find the motivation to work on them once you get home.  D. You tried to do them, but you had a hard time focusing. By the time you realized you hadn’t gotten anything done, it was already time to turn them in. 

Like we said earlier, there are no right or wrong answers to this quiz (though your results will be better if you answered as honestly as possible). Here’s how your answers break down: 

• If your answers were mostly As, then your biggest struggle with doing homework is procrastination. 
• If your answers were mostly Bs, then your biggest struggle with doing homework is time management. 
• If your answers were mostly Cs, then your biggest struggle with doing homework is motivation. 
• If your answers were mostly Ds, then your biggest struggle with doing homework is getting distracted. 

Now that you’ve identified why you’re having a hard time getting your homework done, we can help you figure out how to fix it! Scroll down to find your core problem area to learn more about how you can start to address it. 

And one more thing: you’re really struggling with homework, it’s a good idea to read through every section below. You may find some additional tips that will help make homework less intimidating. 

How to Do Homework When You’re a Procrastinator  

Merriam Webster defines “procrastinate” as “to put off intentionally and habitually.” In other words, procrastination is when you choose to do something at the last minute on a regular basis. If you’ve ever found yourself pulling an all-nighter, trying to finish an assignment between periods, or sprinting to turn in a paper minutes before a deadline, you’ve experienced the effects of procrastination. 

If you’re a chronic procrastinator, you’re in good company. In fact, one study found that 70% to 95% of undergraduate students procrastinate when it comes to doing their homework. Unfortunately, procrastination can negatively impact your grades. Researchers have found that procrastination can lower your grade on an assignment by as much as five points ...which might not sound serious until you realize that can mean the difference between a B- and a C+. 

Procrastination can also negatively affect your health by increasing your stress levels , which can lead to other health conditions like insomnia, a weakened immune system, and even heart conditions. Getting a handle on procrastination can not only improve your grades, it can make you feel better, too! 

The big thing to understand about procrastination is that it’s not the result of laziness. Laziness is defined as being “disinclined to activity or exertion.” In other words, being lazy is all about doing nothing. But a s this Psychology Today article explains , procrastinators don’t put things off because they don’t want to work. Instead, procrastinators tend to postpone tasks they don’t want to do in favor of tasks that they perceive as either more important or more fun. Put another way, procrastinators want to do things...as long as it’s not their homework! 

3 Tips f or Conquering Procrastination 

Because putting off doing homework is a common problem, there are lots of good tactics for addressing procrastination. Keep reading for our three expert tips that will get your homework habits back on track in no time. 

#1: Create a Reward System

Like we mentioned earlier, procrastination happens when you prioritize other activities over getting your homework done. Many times, this happens because homework...well, just isn’t enjoyable. But you can add some fun back into the process by rewarding yourself for getting your work done. 

Here’s what we mean: let’s say you decide that every time you get your homework done before the day it’s due, you’ll give yourself a point. For every five points you earn, you’ll treat yourself to your favorite dessert: a chocolate cupcake! Now you have an extra (delicious!) incentive to motivate you to leave procrastination in the dust. 

If you’re not into cupcakes, don’t worry. Your reward can be anything that motivates you . Maybe it’s hanging out with your best friend or an extra ten minutes of video game time. As long as you’re choosing something that makes homework worth doing, you’ll be successful. 

#2: Have a Homework Accountability Partner 

If you’re having trouble getting yourself to start your homework ahead of time, it may be a good idea to call in reinforcements . Find a friend or classmate you can trust and explain to them that you’re trying to change your homework habits. Ask them if they’d be willing to text you to make sure you’re doing your homework and check in with you once a week to see if you’re meeting your anti-procrastination goals. 

Sharing your goals can make them feel more real, and an accountability partner can help hold you responsible for your decisions. For example, let’s say you’re tempted to put off your science lab write-up until the morning before it’s due. But you know that your accountability partner is going to text you about it tomorrow...and you don’t want to fess up that you haven’t started your assignment. A homework accountability partner can give you the extra support and incentive you need to keep your homework habits on track. 

#3: Create Your Own Due Dates 

If you’re a life-long procrastinator, you might find that changing the habit is harder than you expected. In that case, you might try using procrastination to your advantage! If you just can’t seem to stop doing your work at the last minute, try setting your own due dates for assignments that range from a day to a week before the assignment is actually due. 

Here’s what we mean. Let’s say you have a math worksheet that’s been assigned on Tuesday and is due on Friday. In your planner, you can write down the due date as Thursday instead. You may still put off your homework assignment until the last minute...but in this case, the “last minute” is a day before the assignment’s real due date . This little hack can trick your procrastination-addicted brain into planning ahead! 

If you feel like Kevin Hart in this meme, then our tips for doing homework when you're busy are for you. 

How to Do Homework When You’re too Busy

If you’re aiming to go to a top-tier college , you’re going to have a full plate. Because college admissions is getting more competitive, it’s important that you’re maintaining your grades , studying hard for your standardized tests , and participating in extracurriculars so your application stands out. A packed schedule can get even more hectic once you add family obligations or a part-time job to the mix. 

If you feel like you’re being pulled in a million directions at once, you’re not alone. Recent research has found that stress—and more severe stress-related conditions like anxiety and depression— are a major problem for high school students . In fact, one study from the American Psychological Association found that during the school year, students’ stress levels are higher than those of the adults around them. 

For students, homework is a major contributor to their overall stress levels . Many high schoolers have multiple hours of homework every night , and figuring out how to fit it into an already-packed schedule can seem impossible. 

3 Tips for Fitting Homework Into Your Busy Schedule

While it might feel like you have literally no time left in your schedule, there are still ways to make sure you’re able to get your homework done and meet your other commitments. Here are our expert homework tips for even the busiest of students. 

#1: Make a Prioritized To-Do List 

You probably already have a to-do list to keep yourself on track. The next step is to prioritize the items on your to-do list so you can see what items need your attention right away. 

Here’s how it works: at the beginning of each day, sit down and make a list of all the items you need to get done before you go to bed. This includes your homework, but it should also take into account any practices, chores, events, or job shifts you may have. Once you get everything listed out, it’s time to prioritize them using the labels A, B, and C. Here’s what those labels mean:

• A Tasks : tasks that have to get done—like showing up at work or turning in an assignment—get an A. 
• B Tasks : these are tasks that you would like to get done by the end of the day but aren’t as time sensitive. For example, studying for a test you have next week could be a B-level task. It’s still important, but it doesn’t have to be done right away.
• C Tasks: these are tasks that aren’t very important and/or have no real consequences if you don’t get them done immediately. For instance, if you’re hoping to clean out your closet but it’s not an assigned chore from your parents, you could label that to-do item with a C.

Prioritizing your to-do list helps you visualize which items need your immediate attention, and which items you can leave for later. A prioritized to-do list ensures that you’re spending your time efficiently and effectively, which helps you make room in your schedule for homework. So even though you might really want to start making decorations for Homecoming (a B task), you’ll know that finishing your reading log (an A task) is more important. 

#2: Use a Planner With Time Labels

Your planner is probably packed with notes, events, and assignments already. (And if you’re not using a planner, it’s time to start!) But planners can do more for you than just remind you when an assignment is due. If you’re using a planner with time labels, it can help you visualize how you need to spend your day.

A planner with time labels breaks your day down into chunks, and you assign tasks to each chunk of time. For example, you can make a note of your class schedule with assignments, block out time to study, and make sure you know when you need to be at practice. Once you know which tasks take priority, you can add them to any empty spaces in your day. 

Planning out how you spend your time not only helps you use it wisely, it can help you feel less overwhelmed, too . We’re big fans of planners that include a task list ( like this one ) or have room for notes ( like this one ). 

#3: Set Reminders on Your Phone 

If you need a little extra nudge to make sure you’re getting your homework done on time, it’s a good idea to set some reminders on your phone. You don’t need a fancy app, either. You can use your alarm app to have it go off at specific times throughout the day to remind you to do your homework. This works especially well if you have a set homework time scheduled. So if you’ve decided you’re doing homework at 6:00 pm, you can set an alarm to remind you to bust out your books and get to work. 

If you use your phone as your planner, you may have the option to add alerts, emails, or notifications to scheduled events . Many calendar apps, including the one that comes with your phone, have built-in reminders that you can customize to meet your needs. So if you block off time to do your homework from 4:30 to 6:00 pm, you can set a reminder that will pop up on your phone when it’s time to get started. 

This dog isn't judging your lack of motivation...but your teacher might. Keep reading for tips to help you motivate yourself to do your homework.

How to Do Homework When You’re Unmotivated 

At first glance, it may seem like procrastination and being unmotivated are the same thing. After all, both of these issues usually result in you putting off your homework until the very last minute. 

But there’s one key difference: many procrastinators are working, they’re just prioritizing work differently. They know they’re going to start their homework...they’re just going to do it later. 

Conversely, people who are unmotivated to do homework just can’t find the willpower to tackle their assignments. Procrastinators know they’ll at least attempt the homework at the last minute, whereas people who are unmotivated struggle with convincing themselves to do it at a ll. For procrastinators, the stress comes from the inevitable time crunch. For unmotivated people, the stress comes from trying to convince themselves to do something they don’t want to do in the first place. 

Here are some common reasons students are unmotivated in doing homework : 

• Assignments are too easy, too hard, or seemingly pointless 
• Students aren’t interested in (or passionate about) the subject matter
• Students are intimidated by the work and/or feels like they don’t understand the assignment 
• Homework isn’t fun, and students would rather spend their time on things that they enjoy 

To sum it up: people who lack motivation to do their homework are more likely to not do it at all, or to spend more time worrying about doing their homework than...well, actually doing it.

3 Tips for How to Get Motivated to Do Homework

The key to getting homework done when you’re unmotivated is to figure out what does motivate you, then apply those things to homework. It sounds tricky...but it’s pretty simple once you get the hang of it! Here are our three expert tips for motivating yourself to do your homework. 

#1: Use Incremental Incentives

When you’re not motivated, it’s important to give yourself small rewards to stay focused on finishing the task at hand. The trick is to keep the incentives small and to reward yourself often. For example, maybe you’re reading a good book in your free time. For every ten minutes you spend on your homework, you get to read five pages of your book. Like we mentioned earlier, make sure you’re choosing a reward that works for you! 

So why does this technique work? Using small rewards more often allows you to experience small wins for getting your work done. Every time you make it to one of your tiny reward points, you get to celebrate your success, which gives your brain a boost of dopamine . Dopamine helps you stay motivated and also creates a feeling of satisfaction when you complete your homework !  

#2: Form a Homework Group 

If you’re having trouble motivating yourself, it’s okay to turn to others for support. Creating a homework group can help with this. Bring together a group of your friends or classmates, and pick one time a week where you meet and work on homework together. You don’t have to be in the same class, or even taking the same subjects— the goal is to encourage one another to start (and finish!) your assignments. 

Another added benefit of a homework group is that you can help one another if you’re struggling to understand the material covered in your classes. This is especially helpful if your lack of motivation comes from being intimidated by your assignments. Asking your friends for help may feel less scary than talking to your teacher...and once you get a handle on the material, your homework may become less frightening, too. 

#3: Change Up Your Environment 

If you find that you’re totally unmotivated, it may help if you find a new place to do your homework. For example, if you’ve been struggling to get your homework done at home, try spending an extra hour in the library after school instead. The change of scenery can limit your distractions and give you the energy you need to get your work done. 

If you’re stuck doing homework at home, you can still use this tip. For instance, maybe you’ve always done your homework sitting on your bed. Try relocating somewhere else, like your kitchen table, for a few weeks. You may find that setting up a new “homework spot” in your house gives you a motivational lift and helps you get your work done. 

Social media can be a huge problem when it comes to doing homework. We have advice for helping you unplug and regain focus.

How to Do Homework When You’re Easily Distracted

We live in an always-on world, and there are tons of things clamoring for our attention. From friends and family to pop culture and social media, it seems like there’s always something (or someone!) distracting us from the things we need to do.

The 24/7 world we live in has affected our ability to focus on tasks for prolonged periods of time. Research has shown that over the past decade, an average person’s attention span has gone from 12 seconds to eight seconds . And when we do lose focus, i t takes people a long time to get back on task . One study found that it can take as long as 23 minutes to get back to work once we’ve been distracte d. No wonder it can take hours to get your homework done! 

3 Tips to Improve Your Focus

If you have a hard time focusing when you’re doing your homework, it’s a good idea to try and eliminate as many distractions as possible. Here are three expert tips for blocking out the noise so you can focus on getting your homework done. 

#1: Create a Distraction-Free Environment

Pick a place where you’ll do your homework every day, and make it as distraction-free as possible. Try to find a location where there won’t be tons of noise, and limit your access to screens while you’re doing your homework. Put together a focus-oriented playlist (or choose one on your favorite streaming service), and put your headphones on while you work. 

You may find that other people, like your friends and family, are your biggest distraction. If that’s the case, try setting up some homework boundaries. Let them know when you’ll be working on homework every day, and ask them if they’ll help you keep a quiet environment. They’ll be happy to lend a hand! 

#2: Limit Your Access to Technology 

We know, we know...this tip isn’t fun, but it does work. For homework that doesn’t require a computer, like handouts or worksheets, it’s best to put all your technology away . Turn off your television, put your phone and laptop in your backpack, and silence notifications on any wearable tech you may be sporting. If you listen to music while you work, that’s fine...but make sure you have a playlist set up so you’re not shuffling through songs once you get started on your homework. 

If your homework requires your laptop or tablet, it can be harder to limit your access to distractions. But it’s not impossible! T here are apps you can download that will block certain websites while you’re working so that you’re not tempted to scroll through Twitter or check your Facebook feed. Silence notifications and text messages on your computer, and don’t open your email account unless you absolutely have to. And if you don’t need access to the internet to complete your assignments, turn off your WiFi. Cutting out the online chatter is a great way to make sure you’re getting your homework done. 

#3: Set a Timer (the Pomodoro Technique)

Have you ever heard of the Pomodoro technique ? It’s a productivity hack that uses a timer to help you focus!

Here’s how it works: first, set a timer for 25 minutes. This is going to be your work time. During this 25 minutes, all you can do is work on whatever homework assignment you have in front of you. No email, no text messaging, no phone calls—just homework. When that timer goes off, you get to take a 5 minute break. Every time you go through one of these cycles, it’s called a “pomodoro.” For every four pomodoros you complete, you can take a longer break of 15 to 30 minutes.

The pomodoro technique works through a combination of boundary setting and rewards. First, it gives you a finite amount of time to focus, so you know that you only have to work really hard for 25 minutes. Once you’ve done that, you’re rewarded with a short break where you can do whatever you want. Additionally, tracking how many pomodoros you complete can help you see how long you’re really working on your homework. (Once you start using our focus tips, you may find it doesn’t take as long as you thought!)

Two Bonus Tips for How to Do Homework Fast

Even if you’re doing everything right, there will be times when you just need to get your homework done as fast as possible. (Why do teachers always have projects due in the same week? The world may never know.)

The problem with speeding through homework is that it’s easy to make mistakes. While turning in an assignment is always better than not submitting anything at all, you want to make sure that you’re not compromising quality for speed. Simply put, the goal is to get your homework done quickly and still make a good grade on the assignment! 

Here are our two bonus tips for getting a decent grade on your homework assignments , even when you’re in a time crunch. 

#1: Do the Easy Parts First 

This is especially true if you’re working on a handout with multiple questions. Before you start working on the assignment, read through all the questions and problems. As you do, make a mark beside the questions you think are “easy” to answer . 

Once you’ve finished going through the whole assignment, you can answer these questions first. Getting the easy questions out of the way as quickly as possible lets you spend more time on the trickier portions of your homework, which will maximize your assignment grade. 

(Quick note: this is also a good strategy to use on timed assignments and tests, like the SAT and the ACT !) 

#2: Pay Attention in Class 

Homework gets a lot easier when you’re actively learning the material. Teachers aren’t giving you homework because they’re mean or trying to ruin your weekend... it’s because they want you to really understand the course material. Homework is designed to reinforce what you’re already learning in class so you’ll be ready to tackle harder concepts later.

When you pay attention in class, ask questions, and take good notes, you’re absorbing the information you’ll need to succeed on your homework assignments. (You’re stuck in class anyway, so you might as well make the most of it!) Not only will paying attention in class make your homework less confusing, it will also help it go much faster, too.

What’s Next?

If you’re looking to improve your productivity beyond homework, a good place to begin is with time management. After all, we only have so much time in a day...so it’s important to get the most out of it! To get you started, check out this list of the 12 best time management techniques that you can start using today.

You may have read this article because homework struggles have been affecting your GPA. Now that you’re on the path to homework success, it’s time to start being proactive about raising your grades. This article teaches you everything you need to know about raising your GPA so you can

Now you know how to get motivated to do homework...but what about your study habits? Studying is just as critical to getting good grades, and ultimately getting into a good college . We can teach you how to study bette r in high school. (We’ve also got tons of resources to help you study for your ACT and SAT exams , too!)

These recommendations are based solely on our knowledge and experience. If you purchase an item through one of our links, PrepScholar may receive a commission.

Ashley Sufflé Robinson has a Ph.D. in 19th Century English Literature. As a content writer for PrepScholar, Ashley is passionate about giving college-bound students the in-depth information they need to get into the school of their dreams.

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Tristan's Online Physics Notes

This is not Chegg

My goal here is not to give you solutions to problems from your physics homework, because there are a lot of paid services that do that. i want to properly explain how to recognize the most common types of problems  and the variations you may expect to see on exams and homework. as well as be a reference sheet with tips and explanations for the most common concepts in physics.

Most important suggestion to understand physics

Get enough sleep. It's better to miss an assignment than to turn in garbage work for your 8 AM class that you spent all night on, then sleeping through the next lecture starting a vicious cycle.

Do it early. From day 1 of the semester, look at every assignment the day it's assigned, judge how long it will take, then try to finish 2 days early. It gives time to ask questions, take breaks, and the content is fresher from the lecture.

Office hours are not scary, if your professor's hours don't work for you (or they really are THAT mean) try another professor for the same subject. Asking for special hours or spam email really annoys most professors. If you come prepared with specific questions and can explain what you've tried so far, you will get better answers.

Have a study group that isn't just sharing answers, but actually explains the path to the solutions. Befriend the smart kid that finds the professor's mistakes without being rude about it, if they enjoy correcting the professor, they might enjoy correcting you.

Ask a stupid question, once a day doesn't hurt, and most stupid questions aren't that stupid, sometimes the professor forgot something.

Your school might have tutoring, sometimes it's free. Most tutors are tired of doing people's HW for them, so bring the really hard questions or ask them to explain why something works from a more basic principle.

The textbook isn't terrible, it's wordier than I am, and has more examples than I want to make here

it's just algebra. Review the basic moves for solving equations and doing as much as possible symbolically will help find bugs and understand trends. Put the unit circle on your bathroom mirror until you memorize it, you will be expected to know it by most calc 2 and 3 professors.

Don't do every problem in the book, sure it helps, but exploring a common problem by doing it in different ways (ie kinematics vs work energy) or changing the direction of a force gives a better understanding of trends or better approaches to solving the problem.

This website was inspired by  Paul's Online Math Notes  when a student I was tutoring in calculus asked me if there was a resource with explanations and generalized examples for her physics 1 class, and there will be if I finish this website. I wish I knew how to make dark mode look good. This website is loosely based on the Freedman and Young physics textbook

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• Spring 2023

PHYS 121 A: Mechanics

Syllabus Description:

Topics covered.

Physics 121 addresses the following topics:

• one dimensional kinematics
• relative motion
• motion in two or more dimensions
• circular motions
• rotational kinematics and dynamics
• angular momentum

This course has multiple components: lecture , lab , and tutorial (QZ section in time schedule).  Each component has several important aspects. You can see all the aspects required in a given week in Modules .

This website describes recommended practices to succeed in this course, and this website contains a list of resources you may find helpful for a variety of issues students may encounter during your time at UW.  We highly recommend the following:

• Create a weekly schedule to organize when you will work on the various course components.  A weekly schedule for you to edit is available here .  To use it, you should remove sections that are not yours, and add in times for out-of-class work as listed at the bottom.
• Working in groups.  You will work in groups in tutorials and in labs.  However, we encourage you to work with others on other assignments also.  You can use Ed Discussion to find people interested in forming a study group. 
• attend office hours so that they can be addressed.
• post your question on Ed Discussion   to see if your fellow students can help you. If nobody responds within 24 hours, email your TA with the link to your Ed Discussion post. We will respond within a reasonable time, but please do not expect immediate response.

Contact us if you need help finding the resources you need.

Contact Information

For questions send an email with your course and section (PHYS 121 A) , your UW net ID (the part before @uw.edu in your email address), and name as it appears on Canvas to:

• the instructor, Armita Nourmohammad at [email protected] , for personal correspondence related to grades, health issues, etc.
• the program coordinator at [email protected] for administrator questions related to registering, overloading, etc.
• the PHYS 121 Lab/Tutorial TA coordinator, Peter Shaffer at [email protected] , for questions about your TA or questions that your TA may not be able to answer.
• your TA ( lab TAs , tutorial TAs ) for other questions.

Course Material

You need to purchase the following items:

• Only available from the University Bookstore .
• This will be used to fill in your tutorial work and tutorial homework, so you cannot use a used one.
• See purchasing options here .
• Connect to the online homework system using the instructions found  here .
• Lab notebook ( e.g., a gridded composition notebook or other notebook with gridded paper for drawing graphs and writing down data that are collected.  An electronic version is ok.)

Lecture overview

We will use a flipped classroom model, which has been shown to improve student learning.

• Before each scheduled lecture you need to complete the assigned reading ( see schedule below ).  Note that you should not expect to understand all the reading after reading it once. However, you should at least be familiar with the concepts covered, even if not necessarily able to apply them.
• During lecture I will briefly review the reading, but most of the time will be used for you to work on problems individually, and then to discuss them with your peers. This discussion with peers is one of the most effective ways to learn, so it is important to participate in lectures if possible.

Lectures are from 8:30 AM to 9:20 AM on Monday, Wednesday, and Friday in lecture hall A102 of PAA . I will post lecture notes under the Files . Lectures will be recorded on Panopto  which will be also available under the "Panopto Recordings" menu on the left.  

The Thursday 5:00 to 6:00 PM slot is used for introduction to lab and tutorial, two exams, and exam preparation. ( See schedule below )

Lecture graded components

• After completing the reading, you need to answer questions on MyLab and Mastering before 11:59 PM the day of the corresponding lecture.
• If you submit your lecture reading quiz after it is due, there is a penalty of 1% deduction of the score for every hour that it is late.
• At the end of the quarter the total lecture reading quiz score is scaled by 1.25 with a maximum of 100%.
• Participating in in-class quizzes on Learning Catalytics requires you to bring a web enabled device to lecture. If you do not own a web enabled device, you can borrow one for free from the university. See this site for more details. Please contact us if you have problem accessing to a web enabled device.
• Some questions may be graded purely on participation, but most are graded 80% for participation and 20% for the correct answer. At the end of the quarter the total in-class quiz score is scaled by 1.25 with a maximum of 100%.
• If for a valid reason (family and medical emergency etc.) you miss a significant number of lectures, please contact us so we can excuse your in-class quizzes.
• These will be due on Tues days at 11:59 PM , and will be based on material covered in the previous weeks reading and lectures.
• You can access the lecture homework in MyLab and Mastering .
• If you submit your lecture homework after it is due, there is a penalty of 1% deduction of the score for every hour that it is late.
• If you miss a lecture homework, see the makeup policy .  

Lab overview

You will work in groups of 3-4 to design and conduct experiments that test various hypotheses and models in physics. There will be a total of 5 different labs, some of which span two weeks.  Different parts of the experimental process will be covered in each lab:  data collection, data analysis, drawing conclusions, and refining experimental methodology.  Labs B, C, and D will have a second week that focuses on scientific communication skills, allowing you to reflect on the lab reports that you and your lab partners have written and to revise your writing on the basis of your reflections.

Lab handouts will be posted in a folder called “Labs” in the Files section of Canvas.

Lab graded components

• At the end of each lab, you will be graded out of 2 points - based on your lab notebook and your participation in group discussions.   You need to have the TA complete the check-off sheet before you leave the lab in order to receive credit.
• If you cannot participate in a given lab session, see the makeup policy .
• Each week after your lab, you will need to: (1) Complete a set of Lab HW exercises in Canvas and (2) submit a portion of your lab notebook and/or lab report.  
• These should be completed by 11:59 pm the Sunday after your lab section.
• Lab reports will be graded individually, so each member of your lab group needs to submit a report.  You are, of course, encouraged to work with other students, but your lab report must be written using your own words..
• If you submit a lab report after it is due, there is a penalty of 1% deduction of the score for every hour that it is late.

STEM-Fluency

Stem-fluency overview.

STEM-Fluency consists of optional, extra credit, weekly assignments that  have been carefully designed to help you develop fluency in a variety of math and physics topics that form the foundation for the material that is covered in this course. Mastering the basic problems in these units will help prepare you for the more complex problems in this course and in your future studies.  The goal is for you to be able to put your effort into constructing a rich understanding of the content rather than focusing on the foundational ideas and skills. 

Each STEM-Fluency homework will focus on a few topics.  Each assignment requires you correctly answer a certain number of questions in a row (usually four) for each of the topics.  Random guessing will not help you finish the assignment, so you will need to make a sincere effort – both for your own benefit and time.

The exercises are primarily intended to give you practice in applying core skills, but they also can help identify if you need assistance with a certain topic. You may find you need more practice on certain topics and there is no time limit on these homework sets. However, if you find you are taking longer than 30 minutes to complete, please stop and reach out to Dean Bretland ( [email protected] ) who can make recommendations to ensure that you feel confident with the material as you move forward in the course and that your effort is rewarded.  He can also help if you have problems accessing the system.  If you have difficulties in answering certain types of questions, we also suggest that you reach out to your tutorial or lab TA during office hours.

• STEM-Fluency assignments :  STEM-Fluency assignments will be made available at the same times as the lecture homework ( Tuesdays at 11:59 pm ).  Note that this displays on the STEM-Fluency website as 12:00 am Wednesday morning, but this corresponds to midnight on Tuesday night.  

Tutorial overview

In tutorial you will work in groups of about four students.  Your group will discuss problems designed to help you construct a conceptual understanding of physical laws though a research-based, scaffolded-discovery process.  Initially you may find the questions challenging and not easy to answer on your own.  Tutorial sections are designed to be a comfortable environment for you to make mistakes and to refine your ideas.  In the process you will learn how to reflect on your reasoning and to identify where you might make errors.

Tutorial graded components

• These are designed to get you thinking about your ideas on topics covered in this course.  They are graded based on a thoughtful attempt, not on correctness.
• These become available Friday at 3:30 PM and are due on Sunday at 11:59 PM .
• Once you start a pretest, you will have 15 minutes to complete it without the ability to pause.
• Your lowest tutorial pretest score will be automatically dropped.
• Adequate (2 points) :   Actively engaged in discussion throughout tutorial.
• Needs improvement (1 point) :  Multiple periods not engaged in discussion during tutorial.
• Missing (0 points) : Did not participate in discussion during the tutorial section.
• If you cannot participate in your tutorial section in a given week, please see the makeup policy .
• Your lowest tutorial in-class score will be automatically dropped.  However, you are still responsible for submitting the associated tutorial homework on time.
• Each tutorial has homework that is due at 11:59 PM the   Monday after you have worked through the tutorial .
• For each homework, you need to upload a scanned pdf file to the Canvas tutorial homework assignment. For instruction on how to create and upload a pdf, see this page .
• Only part of the tutorial homework is graded in detail (8 pts); the rest is examined for completeness (2 pts).
• Your lowest tutorial homework score will be automatically dropped.
• If you submit your tutorial homework after it is due, there is a penalty of 1% deduction of the score for every hour that it is late.

Makeup policies

Contact the lecture instructor if, due to a valid reason (family and medical emergency etc.) , you miss a significant number of lecture in-class quizzes, so that we can discuss excusing them, or you miss a lecture homework, so that we can extend the due date without penalty.  Note the lecture in-class quizzes scores are scaled by 1.25 at the end of the quarter, so there is no need to contact us if you miss just a few.

• To receive in-lab credit:

If you cannot participate in one week's lab session in-person due to a valid reason (family and medical emergency etc.) , do the following in this order:

• Try arranging a Zoom meeting during your lab with your lab team.  This is a burden on lab partners, so please be considerate as this privilege is reserved for students who run any risk to others by being in the lab (other exceptions must be cleared by the instructor.)
• If the above option does not work, contact the TA for another lab session (from PHYS 121 or 117) to see if you can participate in their session.  A schedule of labs can be found  here .  Be sure to  contact your TA and your lab partners to let them know that you will participate in another section.
• If you cannot attend any lab section due to a valid reason (family and medical emergency etc.), please Contact the tutorial coordinator , and we will discuss accommodations.
• You are responsible for submitting each lab report and each lab HW, even if you missed a lab or you conducted an experiment in another lab section. If you missed the lab, read the lab handout, then obtain data from your lab partners and discuss the  lab procedures with your lab partners and/or a TA during office hours.
• If you could not turn in a lab assignment due to a valid reason, please contact the TA coordinator to discuss accommodations.

If you cannot participate in your tutorial section in a given week, you can participate in another section, but you cannot do this on a regular basis.  A schedule of tutorials can be found here .  Be sure to contact your TA  to let them know.

Note that your lowest tutorial pretest, in-class, and homework assignments are automatically dropped.  Contact the TA coordinator  if,  due to a valid reason (family and medical emergency etc.), you miss more than one tutorial pretest or tutorial in-class, so that we can excuse them, or you need to submit more than one tutorial homework late, so that we can extend the due date without penalty.

Important note:

Each exam includes questions based on the lectures, labs, and tutorials, so missing a lecture, lab, or tutorial section can have an impact on your exam performance.  If you miss a lecture, lab or tutorial, make sure to work through the missed material to minimize the impact on your course grade.

The midterm exam procedure is described here .

The following dates are preliminary and may change.

• Midterm exam 1 on Thursday April  27th from 5:00 to 6:00 PM in Kane Hall
• Midterm exam 2 on Thursday May 18th from 5:00 PM to 6:00 PM in Kane Hall
• Final exam on Tuesday June 6th from 8:30 – 10:20 AM in PAA A102.

Note that there are no make-up exams.  Students with outside professional, service, or career commitments (i.e. military service, ROTC, professional conference presentation, NCAA sports, etc.) conflicting with the exam dates must contact us early in the quarter to establish alternate examination procedures.  Exam scores for students who miss an exam without making prior arrangements will be zero.

Each exam is out of 100 points, and has three components:

• 70 points on lecture material
• 15 points on tutorial material
• 15 points on lab material

Exams will count for 60% of your grade.  Your overall exam score will be based on the best of the following two methods:

• Method 1: 60% from your average exam score for the two midterms and the final.
• Method 2: 20% from your best midterm score and 40% from your final exam score

We will design the exams such that a student who understands some of the material very well but needs some improvement in the remaining material should get a score around 65%.  If the class average on a given exam is less than 65%, then all the scores for that exam will be adjusted upward so that the average is 65%. Scores will not be adjusted downward even if the class average is higher than 65%.

If a student is found responsible for misconduct during an exam, a score of zero will be given for that exam for this student.  If the misconduct occurs during a midterm, only Method 1 is used to calculate the final grade, and Method 2 is not used.

You will get a grade of 0 for the entire course if y ou

• receive less than 8 percentage points out of the 12 possible percentage points for the lab component,
• OR you participate in fewer than six of the eight labs.

Otherwise your final weighted percentage is converted to a grade point using the following thresholds.

Reading schedule

Reading Schedule

Research Study Information

This course is part of a research project examining student reasoning ability and attitudes about physics with the goal of improving physics teaching.  By enrolling in this course, you are automatically included in the study. Early in the quarter, students will have an opportunity to learn about the study and to remove themselves from the study if they wish. Your instructor will not know whether or not you participate. Please click on this link to review the details of the study, contact a member of the research team, or remove yourself from the study.

Access and accommodation

Your experience in this class is important to us, so if you have a temporary health condition or permanent disability that requires accommodations (conditions include but are not limited to: mental health, attention-related, learning, vision, hearing, physical), please contact DRS to arrange accommodations.

Safe campus

We are committed to ensuring a safe environment on campus.  We encourage you to check out the resources available here .

For students who have a lab or tutorial section at night, night time escort services are available.

Religious Accommodations

Washington state law requires that UW develop a policy for accommodation of student absences or significant hardship due to reasons of faith or conscience, or for organized religious activities. The UW’s policy, including more information about how to request an accommodation, is available at  Religious Accommodations Policy . Accommodations must be requested within the first two weeks of this course using the  Religious Accommodations Request form .

Academic integrity and student conduct

The University takes academic integrity and student conduct very seriously.  Behaving with integrity and respect is part of our responsibility to our shared learning community.  Acts of academic misconduct may include, but are not limited to, cheating by working with others or sharing answers on exams.

Please note that taking photos or recording instructors, other students, and course materials without permission is strictly forbidden.  Streaming or posting inappropriate materials on any course platform is also not allowed. 

All the course materials including exam and quiz questions, lecture notes, lecture videos are intellectual properties of the instructor and the University of Washington. Distributing them in any form without permission is forbidden.  

The University of Washington Student Conduct Code (WAC 478-121) defines prohibited academic and behavioral conduct and describes how the University holds students accountable as they pursue their academic goals.  Allegations of misconduct by students may be referred to the appropriate campus office for investigation and resolution.  More information can be found online at https://www.washington.edu/studentconduct/ .

If you’re uncertain about if something is academic or behavioral misconduct, ask us.  we are willing to discuss questions you might have.

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Tips To Finish Your Physics And Economics Homework Faster

Both economics and physics are two of the most boring subjects for almost all students. Unlike English or programming homework, these are not straightforward. Hence, you need immense concentration and focus when you work on your economics and physics homework. This is a mandatory prerequisite to ensure that you complete your homework quickly. See, as students, there are not one or two subjects for which you have to solve homework papers or assignments . Instead, there are multiple subjects (mostly five or even six), and your professor will assign you assignments and homework for each one. Assignments are your professor’s way of gauging how well you understand what they teach in class. So, you cannot give more importance to one subject’s assignment over another because naturally, all of them are graded. So, if you omit one to complete lengthy Economics or Physics assignments, your grades in other assignments will suffer. Thus, it is vital to ensure that you strike a balance and work on all the assignments at a good pace to ensure that you can squeeze all of them into the stipulated time and still find time for your hobbies and other extracurricular activities. However, if all of it is becoming too overwhelming for you, you can also outsource your assignments to  EduWorldUSA , one of the best homework help platforms on the internet.

In this guide, we will attempt to address some of the vital tips to help you complete your physics and economics homework faster to ensure that you can accommodate everything you need to do in your schedule. So, now, let us get started and address these tips one by one.

Stop procrastinating

One of the biggest problems with students is procrastination. Procrastination is even graver when they have to deal with a subject that they find tedious or complex. Hence, it is more commonly seen with subjects, such as economics and physics. But, you know what? There are no milestones achieved from procrastination. So, what should you do?

For instance, if it is your Economics paper, which gets you procrastinating, you must pick it up first, ahead of all your other assignments, work on it with a fresh mind, quickly solve the paper, and put it aside. Then even after three to four hours of work, when your mind and body are exhausted, you will feel motivated. Your brain will constantly trigger the thought that you are through with the tricky part, so the easy one is surely manageable and motivates you to work on the rest. But, if you think your Economics homework is going to eat up all the time in the day, and you have three other easier assignments to be done in the day, it makes no sense to work on one and compromise the grades of the other three. The viable solution will be to look for a reputed economics expert from  TopAssignmentExperts who can help you with your economics homework while you work on the three assignments. In this manner, all four of your tasks will be done timely, and you can secure your grade.

Solve it start to finish in one go

Often, students tend to take frequent breaks between a single assignment, which is another one of the biggest reasons the assignments take them longer to finish.  

So, if, for instance, you have a Physics assignment that is lengthy, complex, and time-consuming, you must read through all the questions in the assignment and then see how much time it will take for you to solve the whole assignment. You can then plan your day in such a manner that you complete the entire Physics assignment from start to finish in a single sitting. This will surely boost your efficiency at solving the assignments. How? See, when you work on half the assignment, take a break, and then continue with the assignment; you will first have to read through all that you worked on before the break. This can break the momentum and elongate your homework solving time. However, if you feel that your Physics assignment is stressing you out, and even if you gave it your best, you would not be able to produce a copy that can fetch you a top grade, you can consider outsourcing your physics assignments from  ThanksForTheHelp . They have a team of dedicated experts who hold intensive knowledge and have long-standing experience behind them. Thus, they will always help you produce an A-worthy assignment.  

Work on your assignment in a conducive, quiet environment.

The environment in which you work also has a significant impact on your productivity. For instance, if you sit in the section of your home that is close to the door, you will constantly be bothered by the doorbells, or if you sit in the part of the home where you can see and hear everyone talking, you will continuously be distracted with their tasks. This will shift your focus, and you will constantly feel your mind getting deviated. Thus, it is quintessential to find the quietest corner in your home, where you can quietly sit down and work on your homework.  

In addition, it is also a good idea to have your friends and family in the loop. You can let them know about your study time, so they do not disturb you while you are at it. When nobody is bothering you, you are naturally going to finish your assignments faster.  

Keep all your distractions at bay

Social media is one of the biggest distractions, deviating your focus and unnecessarily elongating your assignment solving time. Hence, keeping your phone away from you while you sit down with your assignment is necessary. You can even turn it off and keep it in another room, or silence it and keep it away from your study zone. You can also download  project management software that can help you ensure that you stay on top of all the things you planned for the day and are not unnecessarily wasting time.  

If you need assistance, do not shy away

You are a student, and you are learning every day. There is no shame in acknowledging the fact that there will always be some things that you may not understand. So, if there is any economics graph or a physics concept or theorem that you do not understand, you must always reach out to your professor for assistance. If you are shy and do not want to stall the whole class to clarify your doubts, online courses for  economics  and physics are available on the internet. You can enroll yourself in any of these courses and build on your skills and knowledge.

Bottom Line

These are the five most crucial tips that you must bear in mind to solve your economics and physics homework faster. Are there any other tips that work well for you? Please share with us in the comment box below. We would love to share your tips with our readers.

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