Front

What kind of wave needs a medium (matter) in order to travel?

Back

Mechanical wave

Front

What do waves transfer (move)?

Back

Energy

Front

What is the part of a wave where the particles are packed tightly and there is a lot of pressure?

Back

compression

Front

What is the part of the wave where the particles are spaced apart and there is low pressure?

Back

rarefaction

Front

Sound waves are what kind of waves?

Back

transverse

Front

Light waves are what type of wave?

Back

transverse

Front

The number of wavelengths in a certain amount of time is called...

Back

frequency

Front

The "taller" a wave (the further the wave is pushed), the ________ the sound.

Back

louder

Front

The "shorter" a wave (the less the wave is pushed), the ______ the sound.

Back

quieter

Front

The more frequent the wavelengths of a wave, the ______ the sound.

Back

higher