Universal Gravitational Potential Energy Introduction

Universal Gravitational Potential Energy is introduced and graphed. It is compared to the force of gravity. And the “zero line” is defined.

0:00 Intro
0:11 “Normal” gravitational potential energy
1:33 Gravitational fields
2:22 Universal Gravitational Potential Energy Equation
3:07 Comparing gravitational potential energy to force of gravity
4:12 Graphing Universal Gravitational Potential Energy
5:35 The “zero line” for universal gravitational potential energy
6:05 Can universal gravitational potential energy ever be positive?
6:49 Gravitational potential energy at the surface of the Earth
7:57 Three things to be careful of.

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Thank you to Youssef Nasr for transcribing the English subtitles of this video.

[harshilyadav]

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[willk]

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[fahadalawadi]

I usually explain the negative sign by saying the work done by an external force to bring an object from infinity nearer to a planet will be a negative work because the planet will normally pull this object towards it by its gravitational force

[BoZhaoengineering]

The potential energy concept is a tricky one. But it is an important idea to simplify the system through classic mechanics to electric and magnetism. That makes me a lot of confuse till I see your video. It deserves the notes you make for everyone. Thank you.

[ClestNerd]

The same derivation can be used with electric charges using Colombs law and realizing that the Ue can be positive when the charges repell. Good explanation.

[huntingresonance]

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[Kaizen_改善]

Why the y axis of graph is negative what if we are the y axis of graph in positive ?

[곽효상-fd]

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[Uwek]

+FlippingPhysics Can you explain why the line on the graph you drew is a concave, not a straight line? I got confused when you started drawing it as a concave

[canberkozsu]

If we "move" a body that has mass closer to earth, would we do work?