Energy is the ability to do an action.

A model is a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with.

Stored energy is energy that is not in use, but is saved inside something, such as batteries or rubber bands.

True, sound is a type of energy.

Sound energy is energy that is in the form of sound that can be heard.

Gravitational energy is the energy an object has due to its position in a gravitational field.

Energy transfer is the process of energy moving from one place to another or from one object to another.