AP Physics 1: Work, Energy and Power Review
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- เผยแพร่เมื่อ 6 มิ.ย. 2024
- Looking for AP Physics 1 study guides, multiple choice problems, free response question solutions and a practice exam? www.ultimatereviewpacket.com/...
Review of the topics of Work, Energy, Power and Hooke’s Law covered in the AP Physics 1 curriculum. Want Lecture Notes? www.flippingphysics.com/ap1-wo...
0:00 Intro
0:18 Work
1:38 Kinetic Energy
2:13 Elastic Potential Energy
3:02 Gravitational Potential Energy
4:02 Work and Energy are in Joules
4:58 Conservation of Mechanical Energy
5:54 Work due to Friction equals the Change in Mechanical Energy
6:46 Power
7:46 Hooke’s Law
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Linear Momentum and Impulse Review for AP Physics 1
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Gracias a Carl Hansen por editar las traducciones al español de este video.
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- Los subtítulos de este video de "Flipping Physics" han sido traducidos al Español. Gracias Anwar Delgado!
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Dynamics Review for AP Physics 1
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#APPhysics1 #Review #WorkEnergyPower
Why is this guy teaching me more in an hour than my teacher did all year
Samantha Jaggi hey hope you get a 5 today
Ja'Nasia Price I definitely didn’t but thanks :)
It's really hard to answer that question. You're probably looking for a response like: "your teacher is bad", which could very well be true. Or maybe they don't have the same experience and education. But also it could be that you don't pay enough attention in school or you are distracted by other things (cell phone, classmates, homework due in another class). Or maybe it is because your teacher has to teach multiple times a day (possibly not all physics) to 20-90 students or more, and that's just not the same as editing a video together one time for an audience in the neighborhood of 100,000. I'd wager that each 10 minute video here takes him hours to prepare, film, edit and revise. While the content of the lessons should be the same, the preparation definitely is not. Ever notice Billy, Bobby or Bo asking for a bathroom pass in these videos? Getting reprimanded for being off task, playing on a cell phone or talking when they should be listening? Maybe there should be an outtakes video with Billy and Bo fighting while Billy has his head down on his desk...
Only your self reflection can really answer this question, but the point is, you learned something. So yay!
I got a final tomorrow. Grinding TH-cam vids rn💪🏻
@@arsonor Excellent response. Indeed, Billy, Bobby, and Bo do seem to be unrealistically focused and committed to staying on task when compared to a typical class of high school students. Even Bo, who is meant to be the one acting the least interested in the class, is still actively participating in the discussions and doesn't act surprised and unprepared when he is called upon.
It might be funny once, to see his class act like Ben Stein's economics class in Ferris Bueller's Day Off, but it would get old to see screen time spent on curtailing bad behavior instead of teaching the subject.
I'll probably still fail my test tomorrow, but at least I'll know what I'm failing! Thank you so much for this video, it was fun and helpful!
So how'd you do
@@kyuubijinchuuriki357 same omg praying for the best
@@kyuubijinchuuriki357 same
@@kyuubijinchuuriki357 how'd you do?
For those of you studying, I have the ultimate tip:
1. Take notes from your class and these videos
2. Take the time to understand things you don't understand - make a list.
3. Record a video of yourself teaching the content.
4. Watch the video before your test.
Trust me, from someone who is currently third in their class, use my method and you should see success. Stop telling yourself that you will fail. You CAN do it! Just take the time!
omg this is such an amazing tip, great use of time, I’ll incorporate this for future tests!! :)
thank you
i'm literally abt to take my test in 3 hours thank you for ur kind words sir
Really liked the video and the 3 student format. The change in who is conducting dialogue helps me not zone out, as is my tendency
Glad you stayed awake. Did you learn something?
Who else is mass binging on all episodes, a day before the AP test?!
uh huh
10 minutes before the exam
@@sirhellsing Ma man! I just said nah bro at the end just 40 min before the exams and decided to take the makeup for both Chem and Physics lmao. Gotta actually prep before June.
Two years later and I'm now doing it 😫
@@carolinehoak LMAO SAME
Thank you! The work in scripting out and editing must've been a lot! The subtleties of each student is also very entertaining.
You are welcome and correct, I do put a lot of time in to each video: flippingphysics.com/making-a-video.html
You are literally a lifesaver Mr.P
+Feyza Yucel Perhaps not literally, however, I appreciate the sentiments. Thanks!
this saved my exam last year, now I'm coming back for AP Physics 2 prep!
so this is what anthony has been up to after quitting smosh
Awesome work sir! Hat's off to you!! You're making physics lovable...
These videos are saving my life today! Thanks so so much!!!
good luck to anyone about to take the physics exam!
Absolutely. Good luck to all y'all!
"binge all the episodes a day before the ap exam 2021" gang wya
I guess you probably wouldn't care that it's all incorrect knowledge as long as you pass your test.
Thank you so much! you put so much work into your videos and it is super helpful!
I am glad you appreciate my work. Good luck _today_!
I wish I found this earlier, now I am binge watching before exams on Monday.
I wish everybody could find it earlier, then they wouldn't have to binge watch, then they would understand the physics more.
Thank you so much for these videos. Really helpful in studying for the exam this week!
Kip Sucks You are welcome. Good luck with your studies and exam!
Thank you for posting these videos! You taught me everything for my test tomorrow in 9 minutes! :)
I hope the test went well!
Thanks Mr P, I came from another country a year and a half ago, and your way to explain things is so clear and concise... You are a great teacher! Btw those 3 students are a great way to make your videos interesting, awesome job on this video like the other ones 👍🏼👍🏼👍🏼
+AlvaroMuto Thanks for the positive feedback. Btw those 3 students are learning a lot!
Jesus is real--and apparently he teaches physics!
I think you're in the wrong channel. Professor Dave is also Jesus!
@@Anskurshaikh Professor Dave and Flipping Physics colab when?
He is a great teacher
thank you so much man! it definitely helped me study for my test, and it helped me understand this unit better. Your videos are cool!!! Thank you again!
rose I always wanted to be cool and now I am!!! Thank you Rose!
Thanks for the video man!
hey man, you are awesome. these videos have been really helpful so far in my physics c class tests.
That's great! Are you aware I have AP Physics C review videos as well?
www.flippingphysics.com/ap-physics-c-review.html
Dude this helps so much! Feeling great for my gen physics 1 final!!
TheFidelRF Good luck on your final! Glad I can help you review.
SPLIT (2017)
Raul Vides Sarmiento Underrated comment
Work, Energy and Power Review for AP Physics 1. The third in my set of AP Physics 1 review videos. Enjoy! #PhysicsED #flipclass #APPhysics1
***** I am sorry, however, i think you spelled that incorrectly. I believe it is spelled "saaaaweeeeeeeeet". 😊 FYI: I am going to do my best to get them done in time for all to use to review for the May 6th test.
Flipping Physics you make me hate physics
You're awesome!!! Going to get one of your shirts! Thank you ^,^
I really like how you wear different socks for each of the personas you use, thanks for the videos they really help!
+Hi, im new here It's all about the socks, baby.
Enjoyed learning with you🙏
Makes me happy.
These videos are actually really good.
+Jordan Burickson Of course!
I have my ap test today and this really helped
I really would like to have some spanish videos with this quality of explanation, I mean everything is well organized and it's understandable even for me. My test is this monday and I dont know what to expect to be honest...
god i wish i knew about these videos when i was struggling in class months ago, this is a godsend!
Awsuman Dayal Yep, that's a bummer. Tell all your friends so they don't struggle so much. Thanks for the kudos!
Flipping Physics THANK YOU
Good luck on the physics exam everyone!!!
+Aishvarya Pathange Agreed. Good Luck!
I really appreciate these videos, I am going to tell my friends and teacher about these videos!
It feels good to be appreciated. Thanks.
Flipping Physics your welcome. Hey just on a side note, the CHANGE in kinetic energy can be negative? Even though KE can't ever be negative in itself.
MopTopRock Absolutely. CHANGE in kinetic energy can be negative.
well perfect teaches,so wonderful great thanks all to you!!!!!!
Thanks!
Thank You sir for the info.❤️❤️
im studying for the mcat and this helped me , thank you
Great! Did you see my MCAT playlists? flippingphysics.com/playlists.html
Watching this 12 hours before I fail the test
You are my savior. Thank you!!!! I love your videos
+Tanisha Martheswaran Save Yourselves!!
+Flipping Physics How hard is it to get a 3? Thats all i need lolo
+Natsu Dragneel as i understand you need to get a 40% without the curve, which would 61% with the curve. so you can get 3/5 of the test wrong and still get a 3.
***** I took a practice exam and i got a 5/40 on MC LOL
+Natsu Dragneel well damn... yeah just figure out the ones you got wrong and study hella
this helped a whole lot, hopefully i’ll pass my test tomorrow
I hope you pass your test tomorrow!
(Honestly, I hope for more than passing.)
Quick question: Is there a playlist of the "most confusing concepts in AP 1" or things that are frequently tested in the MCQ word problems or some important examples we definitely need to know for the exam or anything of that sort??
Sorry, however, I do not have anything of that sort.
i found these at the right time about to give my final tmmrw
Awesome. Glad to be here fore you and best of luck tomorrow!
Sir can you plz make the video on joule’s law of heating
Thank you
so simple 👍👍thanks a lot sir
You are welcome!
hey bro you teach very good physcs please tell me which camera did you use to record your lessons
I have a webpage dedicated to all the technology I use: flippingphysics.com/technology.html
And I have a time lapse video of me making a video: flippingphysics.com/making-a-video.html
I would suggest you enjoy both. 😀
Im from IIT BHU but still I'm watching this video..the way of teaching...owsm
Do not worry, the physics is the same in The United States as it is in India!
Thank you so much
You are welcome!!
If only my teacher gave us these videos at the start of the year and not the week before.
I try, however, I still hear this at this time of year every year. Sorry!
@@FlippingPhysics Not your fault. At least you are making the effort of a review comapred to our teacher just playing games on his phone.
Bless you
i hope this will help me with my ap physics exam tomorrow!
It will. Trust me.
Can you do an experiment directly demonstrating the kinetic energy formula KE = 1/2mv^2? I just tried my own experiment and it didn't work. I'm sure you can do a better job. My experiment surprisingly showed that kinetic energy (as measured by how far a car can roll after being given a specific velocity v) is proportional to V and not V^2. Where did I go wrong?
Thanks for this informative video! I have one question though. For work due to friction, Fdcos, how would you find d, as friction doesn't really move the object, instead opposes motion? Is it for what distance the force acts for?
Interesting question. In order for friction to do work, it has to cause the object to move. The force of static friction can do work on an object. Imagine an object in the back of a moving truck. The force of static friction is what pushes the object and therefore what does work on the object to move it. I recommend this video as well: www.flippingphysics.com/intro-wf-problem.html
FYI: The force of friction opposes sliding motion between two surfaces.
Flipping Physics ah ok, thank you so much. I understand it now!
Sir iam loving physics.... Right now.. U r best teacher. Of physics that i have ever seen..... Keep going.... I like ur way of teaching.. U make physics simple. And fun to understand...... I am from india..... I am lucky that i have found u......... I am preparing for a very hard exam.....so know i feel confident that i can crack that examm...... At last thank u so much sir....... ......
It makes me so happy to know I am not only helping you _learn_ physics, but I am also helping you _love_ physics. That is awesome! Keep up the good work!
Sir u are really the best.. Teacher of physics in the whole world.... U just chnged the old boring style of physics.teaching ....now physics is more than just a subject.... Sir please keep providing these lectures......
U r doing a great great work...... Thanxxx so much........
Sir 1 last question and request also.... Can i get these videos in hindi........ 😢😢
Can you make a video on bernoullis principle?
The reason I wanted the video was I am having a doubt in bernoullis principle that how does the pressure reduces with increase in velocity?
Bernoulli's Principle is not a part of the AP Physics 1 curriculum, which is what I am currently working on. Someday, yes; soon, no.
Yes i interest on your learning
brilliant method
thanks!
@@FlippingPhysics wow you are so great
I might actually pass physics now... It's really weird I love calculus and I think its really easy, but I'm really struggling in ap physics.
+ashley stimson Do me a favor. Try watching this video and let me know if it resonates with you. www.flippingphysics.com/understanding.html
Flipping Physics Replying to a 4 year old response but, I’d like to let you know that you helped me a lot with that video!
@@cemint9268 lol I got notified in an email about this reply and was super confused since I took ap physics 4 years ago and forgot about this comment and video, but it’s kinda cool because I remember this and now I’m on my 3rd year of an environmental engineering degree and I really enjoy physics! Even though I may or may not have cried a few times when I took AP physics. Just remember you got this guys!
Gee, what's an AP physics exam?.... I don't think they had those back in Spring of 1972!!.. Yup, that's when I graduated my cylinder out of High School.... ofcourse my Doctor has his own idea of what an AP Physical Exam is... go figure... all Cheesy Kidding aside.. I enjoy all these videos!!.. so ORIGINAL and very Productive... you just can't beat Learning while being entertained at the same time!! Thank You.. ...
You are welcome. I'm pretty sure the first AP Physics Exam was in 1973, so you just missed it!
I see on the AP Physics formula sheet that W = deltaE
This would mean that work is equal to the total change in mechanical energy?
I heard once that the net work done was equal to the change in kinetic energy, not mechanical energy.
You can look at it one of two ways:
1. The net work done by non-conservative forces (or all forces not accounted for by a potential energy) = the change in mechanical energy. Mechanical energy being the sum total of all forms of potential energy and kinetic energy
2. The net work done by ALL forces = the change in kinetic energy. Note that there are zero-work forces like normal forces of constraint, that can be ignored in this calculation for obvious reasons.
Change in potential energy is a shortcut for finding the work done by a force associated with a potential energy. Due to it being a conservative force, the work done by it, is independent of the path, and only depends on the potential energy at the initial and final states.
If Joules is Newton meters does that mean torque can be measured in Joules?
Dude you rock
+Kristoff Vogel Thanks.
Test tomorrow 😮
Test today. Good luck!
The test is tomorrow!!!ahhhhhh
ahhhhhhh!!
You've got this!
Just to clarify, when I hang a spring from the ceiling, it would expand. So is the equilibrium position then determined with F=0, or F=-9.8*m?
This clarifies it quite well: www.flippingphysics.com/mass-spring-horizontal-vertical.html
The spring has two positions that are of interest as the neutral positions of the spring. There is the unstressed position, and the equilibrium position. For a horizontal spring, they are the same position. For a vertical spring supporting a load, the equilibrium position is offset from the unstressed position, by a distance equal to m*g/k for the hung load.
The formula F=-k*x and SPE = 1/2*k*x^2 are both based on x measured from the unstressed position of a spring.
Muy Bueno Compañero ;)
Thank you for all your kind comments!!
Have you been making use of the Spanish subtitles?
Soo... where’s my post AP Physics Exam 2019 gang at?
what are the factors that affect the amount of power?
Depends on what kind of power we are talking about. I.e. what kind of machine is delivering the power? E.g. gasoline engine, electric motor, human body, mechanism that trades force for speed, etc.
Power in general is the rate at which energy is converted from one form into another. Total energy converted divided by time interval. Mechanical work power specifically from the agent of a given force F is force dot product velocity.
Yeah
Gud AP
4:07 Bobby got called out
The people who disliked, failed their ap test
My teacher basically just used your videos instead of teaching his class. Not gonna lie, it kinda sucks. However, I am glad that he at least chose a decent set for us to learn from. So thanks for teaching us all this year!
That's not really how it is supposed to work. The videos are a place for your teacher to start and they are supposed to extend the learning from there in class with problems, demonstrations, labs, and projects. Sorry about that. Good luck today!
Why are all the characters wearing rings? Conspiracy
+Isaac Escobar Clearly.
In China, students learning these concept in High school phase.
In the work equation, does "d" equal displacement, or the distance the object moves?
"d" in the work equation is the magnitude of the displacement of the object on which the work is being done. www.flippingphysics.com/work-intro.html
So if I apply a force to an object and the object makes a bunch of turns, I would only measure the displacement between the beginning location, and end location of the object, right?
No. You would need to treat each linear part of the motion as a different step in the problem and apply W=Fdcosθ for each section.
@@sidrajadnya To calculate the work done over a path with numerous turns, you will need Calculus to solve the problem. This is what is called a line integral of a vector field. You calculate F dot dL along the length of the path, where F is the vector of the force applied, and dL is the infinitesimal vector of the displacement in length along the path. You then integrate from start to finish.
This is why conservative forces (like gravity) are so handy for our calculations, because the work done is independent of the path, and we can use the concept of potential energy as a shortcut to solving the problem, without needing to do a line integral. Non-conservative forces, not so much. There you need to go through the line integral to solve the problem, unless you have another way of simplifying it.
awesome videos ...help a lot ..but I am wondering why these guys are wearing two different shocks ....😅😅
Why are your socks the same?
There is no kinetic energy in a moving mass there is force Mv squared , kinetic energy is the energy of consistent work from a consistent force regards Graham Flowers
Isnt it "speed" instead of "velocity" in the equation for KE?
Speed is just velocity without the direction. Speed is scalar. Velocity is vector
I am sorry. This is incorrect. Please see www.flippingphysics.com/example-problem-velocity-and-speed-are-different.html
It is the instantaneous velocity that matters. Given that the velocity is squared in the kinetic energy formula, you can use either speed or velocity in the formula and it will make no difference. Taking velocity dot product the same velocity is the same thing as squaring the speed.
Flipping Physics's linked example is about average velocity and average speed, rather than instantaneous speed.
Should k be negative in your Hooke's law equation?
1) It is not _my_ Hooke's law equation, it is Hooke's Law.
2) k is always positive. See th-cam.com/video/EbVeoJBjHTw/w-d-xo.htmlm8s
Thank you!
Wait why is Fparallel now cos, last review video it was sin and Fperpendicular was cos
These are two completely different examples. The Force Parallel in the work equation is the force parallel to the direction the object is moving. The Force Perpendicular in the preview video was the Force _of_ _Gravity_ Perpendicular which is perpendicular to the incline the object is on. Again, very different situations.
Good luck tomorrow everyone
Agreed. Good luck to all.
Lord help us all
so the exam is in 2 hours, good luck to all in the present and future
Each character is wearing a Flipping Physics shirt lol!
That moment when subbed.
my AP is tmr and i am NOT ready.... cries ;-;
work is scaler?
+Sumaiya Shah Yes, work is a scalar. www.flippingphysics.com/work-intro.html
Yes. Don't listen to BTW when he denies this.
@@carultch fast reply
@@sumaiyashah3711 I don't read time stamps when deciding to reply.
❤️
💋
I like how you're trying to engage us with the 3 "students" doing most of the answering, but personally, I find that it makes it more confusing than it is helpful when trying to concentrate on what message you're trying to convey (especially when they are commenting or correcting each other's answers). Honestly, I think it would have been easier to follow if you just did all the teaching with only you as the teacher (since it provides a more 1-on-1 experience than that classroom experience you're trying to go for.) However, I do appreciate the effort you put into making the videos.
P.S: The AP exam is tomorrow for me, so wish me luck!! ^^
I hope you passed. I am going to be taking it next Tuesday.
BladeHunterHD My exam is tomorrow 1 year later....
Lmao same dude
Shrub Reaper awsome!!! Study hard. Good luck on the test tmm stranger 😀
How did everyone do?
5:07
wwhen
lol my entire remembers Gravitational potential energy as mgay
Physics semester 1 finals wya?
the headband got me worried
Will Kwiatkowski Why? (just curious)
I'm taking Physics 1AP my junior year wish me luck 🤞🏼 😨😳
You don't need luck; you have my videos!
Why Bo is always late? LOL
Gods work compared to my teacher :D
I found Master Yoda physics version
😊
Jet fuel can't melt steel beams
It's true. Jet fuel cannot melt steel beams.
However, it can heat steel so hot, that it bends like a wet noodle and is useless as a beam. Still solid enough to clang when you hit it with a hammer, but it loses its Young's modulus at high temperatures, and won't perform as a structural member.
bo is LITERALLY me when mfw teacher tries to be funny
like so flipping can see
ap exam's tomorrow ajgsdkiafghsefvjygs 😭
ap exam's today bestoflucktoyou
Love the content on these videos but I really, really hate the 3 student characters. Especially Bobby, i flippin hate Bobby. I know he uses them to make points and help explain certain concepts, but he can easily do that without all of the theatrics. I have found it pretty annoying, distracting, unnecessary, etc. Some people may like this aspect and obviously he makes great videos so I am not in anyway telling him how his videos should be produced. Just wondering if anyone else agrees with my opinion?
+Jordan Manthey he does it to reinforce concepts. it would be weird if he just stood there and said the same thing twice