Energy, Work & Power (19 of 31) Conservation of Mechanical Energy, An Explanation

[@amadoujallow949]

better than what my physics professor explains for 3 hours. Thank You.

[@李木子-m2y]

Amadou Jallow Professor?This was taught in the university?Why we were taught this in senior high by our physical teacher?

[@5hredder]

because most degree plans do not require calculus based physics... and the non-calculus based physics you learn in highschool is fundamentally the same, with the curriculum varying marginally depending on which school teaches it. you can only go so far with the learning material when the subject is basically a math application course and the advanced math is excluded.

[@olamorad8875]

exactly

[@Vicculuz]

I knew this obligatory stupid comment would be top 3 on a video like this.

[@aliahmedalyammahi2492]

We are actually learning this at 9th grade lol

[@jimmybotu]

Wow better than I explained to my students. Quality content like yours is always appreciated Sir!

[@stepbystepscience]

That is very nice of you to say!

[@Amberischewyy]

So grateful! Makes me realize physics isn't as difficult as I imagined.

[@stepbystepscience]

Yes, just try to break it down into smaller steps.

[@mahnoordurrani1092]

Thank you so much all my concepts on the conservation of mechanical energy have been cleared

[@stepbystepscience]

+Mahnoor Durrani That is great and thanks for letting me know. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@edwinanthony3069]

wow, you make everything simpler than how my teacher explains. I love your channel it helps me get through physics. thank you for existing

[@stepbystepscience]

Thank you very much for the great comment. You can see a listing of all my videos at www.stepbystepscience.com

[@hassanulger7167]

The way you explained it was legendary!

[@abhishekgedela9135]

awsome way of explaination

[@stepbystepscience]

Thank you for the awesome comment

[@ilaiyengar9974]

This vid just saved my physics grade

[@stepbystepscience]

Awesome, You can see a listing of all my videos at my website, www.stepbystepscience.com

[@fatimaalhawaj9096]

This video saved my grades thank you so much

[@daniloorbolato]

Your videos are awesome. very helpful. Exam in a week. Wish me luck! 😀

[@stepbystepscience]

Thanks for the comment, hope the exam goes well!

[@PhoenixQueen316]

Thanks. I have a test tomorrow, and I needed this.

[@stepbystepscience]

Hope the test goes well. You can see a listing of all my vidoes at www.stepbystepscience.com

[@riyadbushnaq1537]

Thank you so much :) , you really made it clear for viewers. Great job

[@stepbystepscience]

+Riyad Bushnaq Thanks, I try to go Step-By-Step, in fact….. You can see a listing of all my videos at my website,www.stepbystepscience.com

[@ealhejaily]

Thank you very much for those great videos. I would suggest though that you put this work/energy videos in a series like other videos by you. Example: simple machines (1/7 video series) motions videos (1/21 video series), etc... great work though!

[@stepbystepscience]

Thanks for taking the time to comment. I do have this playlist for those topics, also you can also see a listing of all my videos by topic at www.stepbystepscience.com

[@angelakate9922]

My physics professor give this reference to us and I'm happy i am able to understand this

[@stepbystepscience]

Glad it was helpful for you. Thanks for watching!

[@kawaeeee]

little confuse.... If Ui at rest, U=mg*change of y, the y should be zero? because there have nothing change in height. and when it fall, the y should be -5?

[@luwaarosina8511]

Thanks very much, it was very helpfull and think you deserve more thumbs ….we are patiently waiting for more and well explained as well.

[@stepbystepscience]

Very nice of you to say, thanks!

[@layanas4094]

your lessons are really helping me in my studies thank you

[@tekknin9]

This was awesome, thank you!

[@Mrbonehunter57]

this is a lot of help for me thank you so much

[@veronicaalba8869]

Really helpful video!! THANK YOU!

[@stepbystepscience]

Veronica Alba you are very welcome.

[@japjeetsuden4252]

hi, could I ask something, which you might not be able to do because of time, and I totally get that. Is there any way you could add captions on these? Because I have some hearings issues and some of the stuff you're saying gets oddly translated in the auto-generated English subtitles. Cheers!

[@stepbystepscience]

OK I turned on the captions for this video, you have to click on the CC button, bottom right. I did not edit them to make sure they exactly match what I am saying. Check it out and let me know if it helps. I can turn them on for others if you would like me to.

[@japjeetsuden4252]

Nice! helps a bit. if you could the captions on the other would be awesome because i would hate to bother you over and over again every time i needed to see another video.

[@mkayzondy]

thank you

[@edgarmoreno6967]

Better than my physics’s teacher

[@stepbystepscience]

Thanks....I think?

[@biglennyish]

Great video. Very clear and easy to follow! thank you

[@stepbystepscience]

thank you for the comment, the first goal of my videos is to be clear, concise and get right to the point.

[@QpointXDz]

Extremely helpful. Thanks!

[@stepbystepscience]

Great and thanks for commenting. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@MJ177brrr]

I did an exam question of my board In order to find distance traveled They have used kinetic energy = gravitational potential energy + work done Is this wrong

[@stepbystepscience]

This is correct.

[@MJ177brrr]

@@stepbystepscience thank you 😄

[@thomasnimineh9048]

Good looking out mister

[@stepbystepscience]

Thanks!

[@lensaali2093]

Great explanation! Thank you!!

[@stepbystepscience]

Lensa Ali Thank you very much for the comment.

[@ItsScarllet]

very helpful! thank you!

[@stepbystepscience]

Glad it was helpful! You're welcome.

[@wahidahrazali5502]

Thanks a lot Sir Brian. It was very helpful. Please make a video about momentum. Thank u :)

[@stepbystepscience]

You are very welcome....momentum....If I only had the time...currently work on some video for AC circuits. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@DapaChrons]

thanks Vince Vaughn!

[@stepbystepscience]

You are very welcome and thanks for commenting.

[@Mouse-qm8wn]

Thanks a lot for the great videos😊🇩🇰

[@stepbystepscience]

My pleasure, glad you like them!

[@ziarazonable8124]

Thanks im only in 8th grade . This is our lesson . And i got it .. thank you very much❤

[@stepbystepscience]

You are very welcome, I hope you have fun in 8th grade.

[@ziarazonable8124]

@@stepbystepscience thank you . You helped me

[@j06_ae]

thank you so much!

[@aesthetic35784]

Thanks it is concept building lecture

[@Celtichunter7]

Thanks, I had to hear there may not be friction in the system. Thx alot :D

[@nejateshetu7082]

Wow! Just thank you sooo much!! it is helpful

[@stepbystepscience]

+Nejat Eshetu You are very welcome, You can see a listing of all my videos from my website at, www.stepbystepscience.com

[@jimmy87980]

Positive comment.

[@stepbystepscience]

Actually I think I said a "nice positive comment"...but thank you all the same. Very nice of you. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@tamanaradmanish5297]

👍👍👍👍🙏🙏🙏🙏🙏 keep up !! You are the best!!!

[@stepbystepscience]

Thank you so much! Will do!

[@sophiebosio8171]

Thanks a lot for this! :))

[@seemaebby1]

Nice

[@altejahashimi637]

Thank you so much, your videos helped me alot, :)

[@bekiao]

Wow

[@stepbystepscience]

Thanks

[@bekiao]

tanks my teacher God bless you from Ethiopia 🇪🇹🇪🇹

[@bekiao]

Can i get your email Please

[@oscarduran5931]

Where does the energy go when it hits the ground and stops moving

[@stepbystepscience]

converts into sound, heat, changing the shape of the object, etc.

[@amberamir737]

excellent

[@stepbystepscience]

Many thanks!

[@KAINOA104]

helped a lot, thank you

[@queenethmogale5433]

Thank you so much ❤❤

[@stepbystepscience]

You are very welcome

[@olamorad8875]

thank you so much i wish that i can do better in exam

[@stepbystepscience]

I hope the exam goes well! Thanks for the comment!

[@olamorad8875]

wellcome

[@catalinabenavides4064]

what happens when there are springs involved?

[@ayingguarinvlog7278]

Thanks prof

[@stepbystepscience]

Happy to help!

[@highqualityvisuals3774]

Thank you very helpful

[@vee9477]

thank u!

[@himanshu__370]

good keep it up

[@stepbystepscience]

Great, thanks for the comment. You can see a listing of all my videos at my website, www.stepbystepscience.com

[@drakegomez1496]

were do u get 500j?

[@stepbystepscience]

PE = mgh. 10 x 10 x 5 = 500

[@xploit8838]

great video

[@stepbystepscience]

Thank you.

[@anonymousanonymous6092]

How do you know "y" equals 10?

[@kgosigadimokgethi8998]

So what if there is an applied force and no friction

[@EngineeringTheImpossible-116]

sir does that force has to have constant accelation , for U=mgh?... please help

[@stepbystepscience]

I am not sure I understand your question but I wuld say no. You can see a listing of all my videos at www.stepbystepscience.com

[@salmedinaalic1704]

Thanks !

[@stepbystepscience]

+Salmedina Alic You are very welcome, thanks for commenting!

[@nicolevolek8018]

well that sure made sense!!!!

[@stepbystepscience]

Awesome...You can see a listing of all my videos at my website, www.stepbystepscience.com

[@معاذ_الجمَّال]

THANK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUI

[@stepbystepscience]

You are vvvvvvvvvvvvvvery welcome!

[@معاذ_الجمَّال]

Step-by-Step Science ❤️❤️❤️

[@matthewfairfax9950]

thanks

[@stepbystepscience]

You are very welcome and you can see a listing of all my videos at www.stepbystepscience.com

[@layanas4094]

would you please explain if the system wasn't conserved

[@stepbystepscience]

Layan As Sorry I did not respond earlier, traveling. In brief, the most common case is with friction. If there is friction then the PE at the top will not equal the KE at the bottom because the force of friction will do work on the object as it slides down the slope. But still the PE(top) = KE(bottom) + Work(friction force)

[@angelasamonte9309]

how did you find 500 J?

[@stepbystepscience]

PE = mgh = 10 kg x 10 m/s2 x 5 m = 500 J. As I said in the video I rounded g from 9.81 to 10 to make the numbers easier to follow. Does that help?

[@circa326]

Tom Hanks?

[@stepbystepscience]

Your choice, Tom Hanks, Vin Diesel or Vince Vaughn??? Either way thanks for watching!

[@DeAngeloYouKnow]

my nice positive comment is I love you

[@stepbystepscience]

That is a nice nice positive comment. You can see a listing of all my videos at www.stepbystepscience.com

[@ramdonuser12]

gravity is equal to 9.81 just saying

[@stepbystepscience]

It is not really "gravity" that is equal to 9.81, it is the "acceleration due to gravity" at the surface of the Earth that is equal to 9.81 m/s2. Just to be clear about it.

[@milanimgaga1179]

still dont get it

[@vuyanenduna6494]

thumps up

[@stepbystepscience]

that is all i ask! thanks.

[@fadeelsuleiman2801]

cool

[@stepbystepscience]

+fadeel suleiman Thank you….you can a listing of all my videos from my website, www.stepbystepscience.com

[@mehularora3234]

Tom hanks of Science wars :D

[@Husky751]

I thought GOD was talking to me at the beginning.

[@stepbystepscience]

He did make up the rules of physics.

[@jacobries-roncalli6391]

Sounds like Kevin from the office

[@supernova9886]

Omg I wish i am a native English speaker

[@stepbystepscience]

What is you native language?

[@supernova9886]

Step-by-Step Science Arabic