Work, Energy, and Power: Crash Course Physics #9

When you hear the word "work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in physics and today, Shini is going to walk us through it. Also, energy and power!
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[crashcourse]

We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!

[garethdean]

Let this be a lesson to all of us, if you want power you're going to have to put in a lot of work over time.

[ahzhd]

This was uploaded...


...the day after my physics exam...

[EugeneKhutoryansky]

Physicists have one set of definitions for these words, and the rest of the world has different definitions.

[realmenchangediapers]

Lots of stuff going over my head and that I will forget. But I love listening to a lesson and not being forced to understand it. I can just marvel at the wonders of science and appreciate all those scientists with brain capacity well over my own. Thanks for making the world better with electricity, internet, smartphones and antibiotics.

[lsowner]

I've learned more relevant things watching YouTube, than anything taught in school.

[tiaanengelbrecht]

I'm not even sure why I watch Crash Course Physics...I don't understand half of it, but I feel smart though.

[javierfigueroa]

I love how you blend the colors of the squares when solving an equation! Great work ThoughCaffe

[mujiparacha]

I'm so annoyed by the state of that Rubik's cube

[celt]

I WAS LITERALLY STUDYING THIS RIGHT NOW.

Thank you very much

[Jblade]

I learned more in 10 minutes than i did in 3 weeks of physics. This would’ve been great to have before the unit. The explanation even uses past equations so i can remember them. Thank you

[samuelschonenberger]

I learned physics in German
Now I have to translate everything in my head to follow

[ohthatsnot_]

0:07 is that rihanna on the wall hahahajahahahaha

[vedantkashyap]

Your videos are really helpful for reviewing some of the important concepts a day or two before an exam. Trust me if I would've watched this video without learning the chapter at a slower pace in school I would definitely feel lost😂😂. But thanks to your videos I've developed a lot more confidence than before. You are great teacher.THANK YOU

[florbz]

"You're basically a light bulb!" That was so funny! XD Don't know why...

[radicalbacon]

twinkle twinkle little star, power equals eye squared are.

[aldomaresca]

this series is so well explained!!
I cant wait to see how you tackle electricity and magnetism

[ayesha]

Okay. Thank you so much. Today was coincidentally the day when my teacher started this chapter in school and I come home to this video while surfing YT. God bless!
Really love the simple and AMAZING explanations. Can't believe a boring physics lecture in school turned into a really fun YT Physics Crash Course. 11/10 would recommend.

[nachannachle]

This was a really good input. Once again, it is fantastic to explore the equations and how they describe the same concept using different terms. It is 100 times more engaging than dull mathematical exercises.
Looking forward to the course on power and electricity!

[benjaminringrose]

This video series is a great introduction to the fundamental principles of mechanical engineering, very well done!