Sound

Page
2

Slide 13

The loudness of a sound is most closely related to its

frequency.

period.

wavelength.

amplitude.

Slide 14

The loudness of a sound is most closely related to its

frequency.

period.

wavelength.

amplitude.

Slide 15

Sound made to undergo reverberation is sound that is

sympathetically vibrating.

varying in tone.

multiply reflected.

refracted.

Slide 16

Sound made to undergo reverberation is sound that is

sympathetically vibrating.

varying in tone.

multiply reflected.

refracted.

Slide 17

When sound undergoes refraction, it undergoes a change in

frequency.

wavelength.

speed.

intensity.

Slide 18

When sound undergoes refraction, it undergoes a change in

frequency.

wavelength.

speed.

intensity.

Slide 19

Sound can NOT be

reflected.

absorbed.

diminished by interference.

None of these.

Slide 20

Sound can NOT be

reflected.

absorbed.

diminished by interference.

None of these.

Comment: Sound, like any wave, can undergo all of these!

Slide 21

Sensing an invisible object by way of ultrasound is used by

bats.

dolphins

medical doctors.

All of these.

Slide 22

Sensing an invisible object by way of ultrasound is used by

bats.

dolphins

medical doctors.

All of these.

Slide 23

Sound normally travels farther in air when the sound is

low frequency.

high frequency.

resonant.

low in energy.

Slide 24

Sound normally travels farther in air when the sound is

low frequency.

high frequency.

resonant.

low in energy.

Explanation: Hence the low tone of fog horns.

Slide 25

A factory floor vibrates, and as a result you vibrate when standing on the floor. This is