PSSA Science Lesson 15

______ is the ability to cause change.

_____ is the type of energy that you can see.

Light moves from place to place in _______ and makes it possible to see.

______ is a type of energy that you can hear.

Sound moves from place to place in ______ and is produced when objects move very quickly, or vibrate.

_____is how high or low a sound is.

______ is how loud a sound is.

If an object vibrates quickly, it makes a _____ pitch.

• high

• low

If an object vibrates slowly, it makes a ______ pitch.

• high

• low

______ is the energy of tiny moving particles that make up matter.