Sound Waves and Hearing

Front

What is a vibration?

Back

The complete back-and-forth motion of an object.

Front

What happens to the amplitude of a sound wave when the sound is louder?

Back

The amplitude increases.

Front

What is the Doppler effect?

Back

The change in frequency or wavelength of a wave in relation to an observer moving towards or away from the wave source.

Front

What do sonar and echolocation use to detect objects under water?

Back

Reflection of sound waves.

Front

What is amplitude in the context of sound waves?

Back

The height of the wave, which determines the loudness of the sound.

Front

What is frequency in sound waves?

Back

The number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is wavelength in sound waves?

Back

The distance between two consecutive points of the same phase in a wave, such as crest to crest.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency results in a higher pitch, while lower frequency results in a lower pitch.

Front

What is a transverse wave?

Back

A wave in which the motion of the medium is perpendicular to the direction of the wave.

Front

What is a longitudinal wave?

Back

A wave in which the motion of the medium is parallel to the direction of the wave.