Sound Waves

Front

Low frequency = _______ Pitch

Back

Low

Front

True or False: Sound waves are faster than light.

Back

False

Front

What unit is the loudness (intensity) of sound measured in?

Back

decibels (dB)

Front

Low Amplitude = ______________

Back

Quieter Sounds

Front

Sound waves move more quickly through _________________ matter

Back

dense

Front

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

Back

Approximately 343 meters per second (m/s)

Front

What is the relationship between frequency and pitch?

Back

Higher frequency means higher pitch.

Front

What is the range of human hearing in Hertz (Hz)?

Back

20 Hz to 20,000 Hz

Front

What is an example of a high amplitude sound?

Back

A loud concert or a jet engine.

Front

What happens to sound waves as they travel through different mediums?

Back

They change speed and may change direction.