ABeka Science 4 Sound

Sound waves travel fastest through

• solids

• liquids

• gases

Sound travels faster than light

• True

• False

Sound is a form of energy.

• True

• False

Sound waves _______ travel through empty space.

• can not

• can

Speech is produced by the vibrations of the __________

• larynx

• vocal cords

• throat

• nose

The ____ ear includes the hammer, anvil and stirrup.

• outer

• middle

• inner

The auditory _____ carries the message of sound to the brain.

• nerve

• canal

• ear

When an object vibrates rapidly, the sounds produced have a high

• frequency

• pitch

When objects vibrate slowly they have a low

• frquency

• pitch

The _____ frequency that the human ear can hear is 20 times per second.

• highest

• lowest