Front

What type of waves need matter to travel?

Back

Sound waves need matter to travel.

Front

What type of waves do not need matter to travel?

Back

Light waves do not need matter to travel.

Front

What is the term for how many waves occur in one second?

Back

Frequency.

Front

What two properties of waves make up color?

Back

Wavelength and frequency.

Front

What do waves move instead of matter?

Back

Waves move energy.

Front

What is the bottom of a wave called?

Back

Trough.

Front

What is the top point of a wave called?

Back

Peak.

Front

What is the distance between two consecutive peaks of a wave called?

Back

Wavelength.

Front

What is the height of a wave from its rest position to its peak called?

Back

Amplitude.

Front

What happens to sound waves when they travel through different materials?

Back

They can be reflected, absorbed, or transmitted.