Sound Test

Front

What property of waves is changed when adjusting the volume on a TV?

Back

Amplitude

Front

What phenomenon allows you to hear sound around an open door?

Back

Diffraction

Front

Which instrument has a higher pitch: a violin or a cello, and why?

Back

The violin because it has a higher frequency; frequency and pitch are directly related.

Front

If an alarm system produces a wave with a higher decibel level, which alarm is the loudest?

Back

The alarm with the highest decibel level.

Front

How does the speed of sound in water compare to the speed of sound in air?

Back

Sound travels slower in air than in water.

Front

What is the definition of amplitude in the context of sound waves?

Back

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

Front

What is the relationship between frequency and pitch?

Back

Frequency and pitch are directly related; higher frequency means higher pitch.

Front

What happens to sound waves when they pass through different mediums?

Back

Sound waves change speed and may change direction depending on the medium.

Front

What is diffraction in relation to sound waves?

Back

Diffraction is the bending of waves around obstacles and openings.

Front

What is the definition of wavelength in sound waves?

Back

Wavelength is the distance between successive crests of a wave.