Chapter 6, Sound

A rapid back and forth movement

• Echo

• volume

• Vibration

• Quality

Sound of waves spread out as they move closer to the source of their vibrations.

• True

• False

Sound waves travel at different speeds through all types of matter.

• True

• False

• Both

Sound waves move outward from the source _______________.

• in one single direction

• in all directions

• upward only

Which characteristic of sound depends on how fast the source of sound is vibrating?

• Volume

• Quality

• Pitch

The volume of a sound depends on how much ______________ is used to make an object vibrate?

• quality

• force

• pitch

• speed

What characteristic of sound helps us identify different instruments?

• Pitch

• Volume

• Quality

Which state of matter does sound travel through fastest?

• Gas

• liquid

• Solid

A sound wave that _____________ clearly enough to be heard again is called an echo.

• reflects

• vibration

• absorb

Rough or soft surfaces _________________ sound waves.

• Reflect

• Absorb

• Vibrate