(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**

Join Physics Forums Today!

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

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

# Homework Help: On Electric and Gravitational Potential Energy

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