Introduction to Conservation of Mechanical Energy with Demonstrations

Рет қаралды 114,622

8 жыл бұрын

Looking for AP Physics 1 study guides, multiple choice problems, free response question solutions and a practice exam? www.ultimatereviewpacket.com/...
Ian Terry, winner of Big Brother 14, makes a special appearance to help us learn about Conservation of Mechanical Energy. See several demonstrations and understand when mechanical energy is conserved. Want Lecture Notes? www.flippingphysics.com/intro-...
This is an AP Physics 1 topic.
0:00 Intro
0:01 Reviewing the three different types of mechanical energy
0:23 Mr. Terry drops an object for our first demonstration
0:58 Calculating Kinetic Energy and Gravitational Potential Energy
2:53 Mechanical energy data table
3:37 Conservation of mechanical energy graph
5:10 When is mechanical energy conserved?
7:13 A second demonstration of conservation of mechanical energy
Next Video: Introductory Conservation of Mechanical Energy Problem using a Trebuchet
www.flippingphysics.com/coe-pr...
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- Omar Yassin تمت ترجمة هذا الفيديو للغة العربية من قبل
- As legendas desse vídeo da Flipping Physics foram traduzidas para Português. Obrigado, Felipe Barretto!
- Los subtítulos de este video de "Flipping Physics" han sido traducidos al Español. Gracias Marya Silva y Odalis Reyes!
Previous Video: Introduction to Elastic Potential Energy with Examples
www.flippingphysics.com/intro-...
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Пікірлер: 115

@muutrich 4 жыл бұрын

4 years later and you're still helping people such as me! I love this channel❤

@FlippingPhysics 4 жыл бұрын

Yep!

@ahmadnawazkhan1651 5 жыл бұрын

I used to think that people who have millions of views must have explained things better but you proved me wrong. Subscribed!

@FlippingPhysics 5 жыл бұрын

I do wish this video had millions of views. Someday?

@dianampm99 7 жыл бұрын

This is the best physics channel ever. Thank you so much for doing these videos!

@FlippingPhysics 7 жыл бұрын

Thanks and you are welcome!

@ahmedmamdouh3579 4 жыл бұрын

I usually do not comment on youtube but man.. your lesson is awesome! I can't imagine how much effort you've put into making this, but it completely pays off! (glad to see subtitles as well)

@LandoftheIn-Between 3 жыл бұрын

You’re brilliant seriously I always come to your videos before my test because it clarifies so much that was missing in my understanding. I appreciate the work and passion you put into teaching us. You deserve way more credit. 🙏🏼🤗🙌🏼

@goodmomentsgoodthoughts3236 6 ай бұрын

This is the best video worth million views.. Thanks a lot.. Lots of respect from india..

@drunkslav7280 8 жыл бұрын

this is off topic but I love the sound your board makes when you write on it at superspeed

@FlippingPhysics 8 жыл бұрын

+thedarkone Actually, me too. I run those parts through a "treble reduce" audio filter, otherwise it sounds too high pitched and annoying. Now it sounds pleasant.

@pukamon1681 8 жыл бұрын

Such a simple concept when explained well and thoroughly. Thanks for this vid, Mr. P.

@FlippingPhysics 8 жыл бұрын

+Puka Chi You are welcome and I totally agree it is a simple concept. 😊

@babby2ify 3 жыл бұрын

Best explanation on KZfaq! Hands down!!!!

@xenon3148 3 жыл бұрын

It's my first time seeing your videos and I love your creativity! Hope you've been doing great!

@rakibulhasan-yv8fr 3 жыл бұрын

I really appreciate you. 6 years ago you made this content and still know it's helping students and the system you used for making content that's unique and cool. Love you from Bangladesh.

@FlippingPhysics 3 жыл бұрын

So glad to help!

@crontsquared230 3 жыл бұрын

Absolutely amazing video! Tysm!

@Kyrowebb 7 жыл бұрын

Honestly you are amazing at explaining physics, keep it up!

@FlippingPhysics 7 жыл бұрын

Thanks. I will continue to keep working on it. How about you keep on learning?

@alexandrabarajas5939 6 жыл бұрын

I love this new approach! Thank you!

@FlippingPhysics 6 жыл бұрын

You are welcome. Although it is not a new approach for me. I've been doing this for five years.

@skiply8505 4 жыл бұрын

great work explaining. And looking through those comments and seeing that they are old like its 2020

@BoZhaoengineering 4 жыл бұрын

I like the way you explain it. The Concept is explained very clear! Thank you.

@FlippingPhysics 4 жыл бұрын

Glad you liked it

@kushagrapandey8835 6 жыл бұрын

Best physics channel ever. The way he explains is damn high. I really love it.

@FlippingPhysics 6 жыл бұрын

Thank you! So glad to help you learn.

@learningisecstatic9348 5 жыл бұрын

This channel should have billions of subscribers. Best ever channel to learn physics.

@FlippingPhysics 5 жыл бұрын

I completely agree.

@Y2JRedskins 8 жыл бұрын

you deserve so many more views! the work you put into these videos is nearly unparalleled ;) BTW is Mr. Terry winner of Big Brother 14 Ian?

@FlippingPhysics 8 жыл бұрын

+Y2JRedskins Thanks. Hopefully time will deliver the views you feel I deserve. Yes, Mr. Terry is Ian Terry the winner of Big Brother 14. It was very nice of him to drop an object for one of my videos, agreed?

@Y2JRedskins 8 жыл бұрын

Agreed ;)

@samuelunderwood5286 8 жыл бұрын

I thought I recognized that guy.

@shivamkokane7885 5 жыл бұрын

You are awesome and deserve to be shared, thx so much

@FlippingPhysics 5 жыл бұрын

You are welcome so much. I hope you learned.

@rachelprince1970 6 жыл бұрын

you are literally saving me from failing my physics class right now THANK YOU SO MUCH MR. P

@FlippingPhysics 6 жыл бұрын

You are very welcome. Glad to help! You can help me too: www.flippingphysics.com/help-out.html

@haynecoralde3903 6 жыл бұрын

Thank you for this!

@FlippingPhysics 6 жыл бұрын

You are welcome!

@ajaysinghthakur1411 4 жыл бұрын

Best explanation

@ranawalid9947 4 жыл бұрын

thank you so much this really helped !!

@FlippingPhysics 4 жыл бұрын

You are very welcome.

@rodrigourbizo9937 3 жыл бұрын

Awesome!!!!

@jeanatienza1247 4 жыл бұрын

Thank you!!!!

@WarriorAjk 8 жыл бұрын

I got a question. What if I don't have a height, instead I have a length. Like in the case of a pendulum striking a wooden block. Do I measure the distance between the wooden block and the launching or the pendulum or do I measure how high the pendulum goes? Thanks

@FlippingPhysics 8 жыл бұрын

+Brookie The gravitational potential energy of the pendulum depends on the "vertical height above the horizontal zero line". In other words, with regards to the gravitational potential energy of the pendulum, the displacement of the pendulum in the x-direction is irrelevant, only the displacement of the pendulum in the y-direciton matters. Both of these in-class lecture videos of mine might be helpful. kzfaq.info/get/bejne/nsqAgNynrLe4Y4E.html and kzfaq.info/get/bejne/nLyigrGq2rypm30.html

@maryahalkhwildi9223 5 жыл бұрын

Thank you so much 🌹🌹

@FlippingPhysics 5 жыл бұрын

You are welcome.

@glue_music 4 жыл бұрын

The Dance of the Pendulum, a thing of beauty ;)

@amartrivedi3522 2 жыл бұрын

You deserve more view's

@clintn.kildepstein1656 3 жыл бұрын

YOOO IAN TERRY

@jahshante95 7 жыл бұрын

At 1:28 seconds was that a typo where it says that the mass is 3.8? Or is it suppose to be 3.6?

@FlippingPhysics 7 жыл бұрын

Bummer. The mass of the dropped object was 3.6 kg. Sorry about that.

@jahshante95 7 жыл бұрын

Okay great, thank you so much for helping me understand!!!!!! 😁😊

@biledionez9014 7 жыл бұрын

From the idea that energy can not be created or destroyed and only transferred: If i am applying work at an object causing it to accelerate forward, it gains kinetic energy while its potential energy stays the same, that means i am transferring energy to it, right? If so, what kind of energy was this inside my body before being transferred and becoming the kinetic energy on the object?

@oweznero 7 жыл бұрын

bile dionez it's also elastic potential energy

@ararararara902 5 жыл бұрын

Chemical energy inside your muscle cells, I guess?

@roshnirodriguez2952 8 жыл бұрын

your videos are amazing! But why is the acceleration due to gravity positive for PE=mgh?

@FlippingPhysics 8 жыл бұрын

+Roshni Rodriguez The acceleration due to gravity, g, is, and always has been, positive. kzfaq.info/get/bejne/rN-md916l5jXf3k.htmlm26s

@WarriorAjk 8 жыл бұрын

This makes so much sense!

@FlippingPhysics 8 жыл бұрын

+Brookie The sentiments are appreciated, however, the expletive is not. Sadly, I am going to have to remove your comment if you do not rephrase your comment to something more appropriate. Thanks again for the compliment though.

@WarriorAjk 8 жыл бұрын

Flipping Physics Hahaha ok man! But keep up the work xD!

@FlippingPhysics 8 жыл бұрын

+Brookie Thank you for your appropriate, supportive comment. 😉

@WarriorAjk 8 жыл бұрын

anytime!

@GoodAudioBro 8 жыл бұрын

Houston Texas!

@albertyeung5787 4 ай бұрын

excellent explanation

@natalielopez6738 8 жыл бұрын

when solving problems on the AP test should we plug numbers into the equations with their units? Also any tips for last minute learning before my test on May 3?

@FlippingPhysics 8 жыл бұрын

+Natalie Lopez With regards to what you should do when solving problems on the AP test, I model that in every problem I solve in the videos. Here is a good example: www.flippingphysics.com/wf-problem-billy.html Any tips I have for the AP Physics 1 Test I have in May are at www.flippingphysics.com/ap-physics-1-review.html

@natalielopez6738 8 жыл бұрын

thank you!!

@Esparsero 5 жыл бұрын

Thank you so much!!!🙏

@FlippingPhysics 5 жыл бұрын

You are very much welcome!

@basalirwajesse737 11 ай бұрын

Just a qn on the table you showed how does the object possess speed yet it's on the ground at 0m?

@aniketprasad7700 3 жыл бұрын

I have one question Mr P , if in the pendulum example the energy is conserved shouldn't the pendulum swings infinity ?

@FlippingPhysics 3 жыл бұрын

Yes. In the absence of friction, the pendulum will swing with the same amplitude forever.

@LittleKokasLife 8 жыл бұрын

Since there is air resistence should not the mechanical energy decreases as it falls down? Can we view it as a friction?

@FlippingPhysics 8 жыл бұрын

+Andre Silva Generally we assume air resistance is negligible, which it certainly is in this example. In this case what I mean by "negligible" is that, yes, a very small amount of mechanical energy is converted to heat via friction with the air as the ball falls, however, it is such a small amount that it doesn't effect the problem at all. For more on this, see www.flippingphysics.com/the-euler-method.html where I go through and calculate the effects of the force of drag on an object in projectile motion.

@keenobaerry3195 2 жыл бұрын

it feels like my college professors are really trying to make physics as boring as possible. i can't thank you enough for being the counterforce in the world of physics. Conservative of Physics Interest

@valeriadiaz1093 6 жыл бұрын

Love it 👌

@FlippingPhysics 6 жыл бұрын

You are welcome!

@lumrikano4230 2 жыл бұрын

BEST VIDEO

@owaismaqbool234 6 жыл бұрын

Sir would u make a video on conservation of mechanical energy of a system comprising of two particles like that of a pulley

@owaismaqbool234 6 жыл бұрын

What i want to say is how to make an equation of conservation of mechanical energy of two particles in the system

@owaismaqbool234 6 жыл бұрын

Both connected

@26goldnugge 7 жыл бұрын

What causes the pendulum to stop?

@FlippingPhysics 7 жыл бұрын

In the absence of friction, nothing, it will never stop. If friction exists, then friction.

@rohanr5150 3 жыл бұрын

Wouldn't the centripetal force be the Fa in your pendulum example.

@FlippingPhysics 3 жыл бұрын

Not sure what you are asking, however, this might help: www.flippingphysics.com/water-bucket-analysis.html

@HGCrawfish 8 жыл бұрын

Is this Ian that won Big Brother at 0:37?

@FlippingPhysics 8 жыл бұрын

+HGCrawfish Yep. Note: Often questions like these can be answered by reading the descriptions of videos. :)

@abdulyusuf1221 8 жыл бұрын

Can you please do a video on Physics ii

@FlippingPhysics 8 жыл бұрын

+Abdul Yusuf I appreciate your wish to have me do videos that cover the AP Physics 2 topics, however, my current priority is AP Physics 1 and then AP Physics C: Mechanics and then AP Physics C: Electricity and Magnetism and then AP Physics 2. In summary, AP Physics 2 isn't to happen for a very long time. Sorry.

@abdulyusuf1221 8 жыл бұрын

+Flipping Physics It's okay, just keep up with the good work. and thanks for all the videos they are really helpful

@learningisecstatic9348 5 жыл бұрын

Sir you have said that mechanical energy is conserved when there is no force applied. But the two relavent examples you have demonstrated force of gravity is being constantly applied. Please help sir.

@FlippingPhysics 5 жыл бұрын

1) Mechanical energy is conserved when there is no work done by a force applied and no work done by a force of friction. 2) The force of gravity is not a force applied.

@learningisecstatic9348 5 жыл бұрын

@@FlippingPhysics yes got it sir. Thank you.

@carultch 2 жыл бұрын

@@learningisecstatic9348 By "force applied", he usually means forces of human intervention, rather than forces in general.

@deepthrought 6 жыл бұрын

The dance of the pendulum. Who remembered the dance of the dragons? 😂

@Uncertaintycat 7 жыл бұрын

nice shockwave there in the camera at impact

@FlippingPhysics 7 жыл бұрын

That is actually the mass causing the ground to shake which caused the camera to shake. I thought it was pretty cool too.

@abetterworld8698 2 жыл бұрын

Nicee😍👍

@sakshilonkar5988 6 жыл бұрын

Best physics

@FlippingPhysics 6 жыл бұрын

Thanks. Glad you think so.

@pedroleon4421 3 жыл бұрын

the houston guy looks like he was being held at gunpoint

@karo.k.8515 3 жыл бұрын

Thank you MR.P And Bob I forget other name sorry😁 but Thanks for all🙃💚💛❤🖤🧡

@FlippingPhysics 3 жыл бұрын

You are very welcome.

@benjaminherbst6048 3 жыл бұрын

This man got the guy from big brother 😂

@mysterykidzfli 4 жыл бұрын

Who else is watching this for online school bc of corona??

@weirdyetunique 2 жыл бұрын

I love how that kid still wants his 2 dollars

@FlippingPhysics 2 жыл бұрын

To this day...

@Gserrano27 5 жыл бұрын

Physics teachers are to be forced to show your videos to students

@FlippingPhysics 5 жыл бұрын

That probably would not work out so well.

@vic7926 4 жыл бұрын

My teacher does for homework

@benziervogel7285 3 жыл бұрын

“Weed makes you lazy”

@xishnik01 4 жыл бұрын

they are not using calculators xD

@purplegirl6176 8 жыл бұрын

firstt