Sound Waves Review

Front

Frequency of waves is measured in _____?

Back

Hertz

Front

A rarefaction is generated when particles move ______.

Back

apart

Front

True or False: The Doppler effect is seen when a wave-making source moves toward an observer.

Back

True

Front

Sound is made when a source of energy forces the matter to _________.

Back

vibrate

Front

When an ambulance moves TOWARD you, it sounds ________ pitched.

Back

high

Front

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

Back

Wavelength

Front

What is the unit of measurement for sound intensity?

Back

Decibels

Front

What happens to the pitch of a sound as the source moves away from an observer?

Back

The pitch decreases.

Front

What is the term for the compression and rarefaction of particles in a sound wave?

Back

Longitudinal wave

Front

What is the speed of sound in air at room temperature?

Back

Approximately 343 meters per second.