Ch. 10 #2

What is music?

• A collection of sounds used in a regular pattern

• Vibration whose frequency is multiplied.

• A hollow chamber that amplifies sound.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Can beats with slightly different frequencies combine?

• True

• False

Tags

NGSS.MS-PS4-1

The sound produced by musical instruments is ________ by resonance.

• Amplified

• Overtone

• resonator

When compressions and rarefactions overlap one another the volume of the sound ________?

• Decreases

• Increases

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

When compressions and compressions overlap the volume of the sound ________?

• Increases

• Decreases

Tags

NGSS.MS-PS4-1

What are two reasons why sounds usually travel faster through solids than through gases?

• lower density

• higher density

What are the three sections of the human ear?

• Outer, middle, brain

• Outer, middle, inner

How high or low a sound is?

• vibration

• frequency

• pitch

• echo

What is the effect when the source of the waves is moving relative to the listener?

• SONAR

• Doppler Effect

• Echo Effect

What is a decibel?

• unit of intensity

• unit of frequency

• unit of pitch

Tags

NGSS.MS-PS4-1