Which of the following produce sound?

• soft objects

• radio stations

• vibrating objects

• objects under pressure

Compared to the speed of light, sound travels __________.

• faster

• slower

• at the same speed

• There is not enough information to compare the two.

Which of the following would be most likely to transmit sound the best?

• steel in cabinet

• water in the ocean

• air in your classroom

• water in a swimming pool

A sound wave is a __________.

• shock wave

• standing wave

• transverse wave

• longitudinal wave

The speed of sound wave depends on __________.

• pitch

• loudness

• temperature

• none of the given choices

Sound waves cannot travel in __________.

• air

• water

• steel

• vacuum

What happens to the wavelength of a sound wave if both the frequency and the velocity of sound are reduced to one-half?

• It is halved.

• It does not change.

• It becomes twice as large.

• It is reduced to one-fourth.

A high frequency sound has __________.

• low pitch

• high pitch

• low energy

• low pitch and low energy

The part of the ear where sound energy is converted to electrical impulses and sent to the brain as nerve pulses is the __________.

• tympanum

• cochlea

• earl canal

• auditory nerve

Compared to a thin string of the same length and tightness, a thick string produces sounds of __________.

• the same pitch

• lower pitch

• higher pitch

• lower then higher pitch