(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I have learned that gravitational potential energy's formula is:

GPE = mgh

But I saw other formulas relating to gravitational potential energy:

[itex]\phi[/itex] = -G(m/r)

And then one formula like this:

F = dU(x)/dx

And then there's a formula relating to the CHANGE in gravitational potential energy:

E = m[itex]\Delta[/itex][itex]\phi[/itex]

Similarly, I'm confused with the electric potential energy:

V = (coulomb's constant)(Q/r) What is this? Why is there a voltage symbol?

CHANGE in electric potential energy:

E = QV What is this?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# On Electric and Gravitational Potential Energy

**Physics Forums | Science Articles, Homework Help, Discussion**