Calculating gravitational potential energy | Modeling energy | High school physics | Khan Academy

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Mathematical expressions, which quantify how the stored energy in a system depends on its configuration (e.g. relative positions of charged particles, compression of a spring) and how kinetic energy depends on mass and speed, allow the concept of conservation of energy to be used to predict and describe system behavior.

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[parsakondori]

Your videos and website have been helping me since the 4th grade. I’m about to graduate high school now

[saurishtiwari]

thanks, I needed to make a presentation on it now my doubt is crystal clear

[anwta_k]

thanks my teacher told us we were smart enough to figure the puzzle out 😭

[andycremeans]

I’m at 3:44 here and pausing to ask a question.

Here’s the context:
I’ve built a water tower to collect my rain. It sits in a 55 gallon drum. I’m wanting to trigger a trapdoor releasing into free fall. The potential energy transforms to kinetic during fall and the impact energy is harnessed into rotating a flywheel.

Here’s my question:
Would not more joules be obtained in the fall, due to the squaring of acceleration? If it takes x energy to lift 10 meters than it takes 2x energy to lift 20 meters but the force from acceleration at 20 meter height isn’t just doubled, it’s squared, correct?

[ReaderOfTheSwords]

Bruh, the physics midterm is gonna destroy me. So this helps me somewhat. Wish me luck

[doomrun]

Why would the 5kg mass be able to move the other 5kg mass 10 ft off of the ground? Wouldn't the system be at equilibrium?

[tsehayenegash]

what is the potential and kinetic energy per unit mass interval of the stratosphere and troposphere?

[cheeszoup]

Got kicked out of my online class due to my internet now I'm watching this while the others are solving

[zakirhussain-jsku]

Does gravitational field borrow its energy from space. Only space exists b/w and around mass bearing objects which could be the only source.

[wigglywrigglydoo]

What if the object is of substantial dimensions? Where do we start its measurement of its height distance relative to the earth surface?

[amanpreetkaurss]

If we apply same force as weight of object, object will does not move because two same forces cancel each other ????😋😄

[V.E.X.I.F.Y]

LOL im in middle school and i saw that it said high school physics. Im taking PhySci! Wish me luck!

[abrahamifidon]

Does high affect gravitational pull an energy

[EngiSMG]

How to know or find gravitational force because in my assignment, the given of it wasn't there

[qualquan]

All objects on the surface of earth have negative PE. IOW they are all in a gravitational well and can never have positive PE.

[Basri]

An 2kg object is pushed by a force of 40N moving from rest to a distance of 600m.please compute:

a. the acceleration
b. the finale velocity after 8second
c. the distance travelled in the 8 second
d. work done
e. kinetic energy
f. in the 600m, what is the kinetic energy?

please answer it sir..thank u!!

[mstudios]

can anyone tell me the full form of GPE

[Sierra-]

What happens if your measurement is in centimeters and not meters ?

[dorteramacey]

Johnson Melissa Martin Matthew Anderson Robert

[PineappleDudeYT]

It made sense at the start...but then I had a brain fart.

(;´༎ຶД༎ຶ`)