The elasticity of a substance describes how fast or slow its particles bounce back-and-forth as ________ move through object.

Which physical property of a medium is defined by how close the particles of the substance are to each other?

Which temperature causes sound to travel more slowly?

Which of these is not a property of a sound wave?

The amount of energy a sound wave carries per second through a unit of area is its

The _______ of a wave increases with increased energy.

Loudness of waves is measured in

The maximum safe level for loudness is

Frequency of waves is measured in

High frequency sounds have _______ pitch