# Homework Help: What type of energy is the e in mass–energy equivalence equation?

1. Dec 17, 2012

We recently started learning about special relativity. Today my teacher said that ET = E0 + EK when talking about masses in motion. So what is the name for the energy stored in mass? We have already learned about kinetic, gravitational, elastic, magnetic and I'm sure I forgot a few.

2. Dec 17, 2012

### SammyS

Staff Emeritus
Rest Energy:

$E_0=m_0\,c^2$

3. Dec 18, 2012