Sound Waves

Front

Sound waves are also known as ----- waves.

Back

Both longitudinal and compression.

Front

True or False: Sound needs a medium.

Back

True.

Front

True or False: Sound waves are faster than light.

Back

False.

Front

Sound is produced by -----

Back

Vibrations.

Front

What type of energy does a sound wave have?

Back

Mechanical.

Front

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

Back

Approximately 343 meters per second.

Front

What is the frequency range of human hearing?

Back

20 Hz to 20,000 Hz.

Front

What is amplitude in relation to sound waves?

Back

The maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency results in a higher pitch.

Front

What is an echo?

Back

A reflection of sound that arrives at the listener after a delay.