Ch. 17-Part 4 Question Preview (ID: 30688)
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Sound is produced by something that _________________________.
a) vibrates
b) bends
c) curves
d) cpmpresses
As temperature increases, the speed of sound ______________.
a) decreases
b) stays the same
c) increases
d) both b and c
Music is a group of sounds that have been deieberately produces to make a(n) _______________________
a) pattern
b) no pattern
c) irregular pattern
d) vibration
Noise is a group of sounds with no regular ____________________.
a) pitch
b) overtone
c) pattern
d) frequency
Why are the walls or ceilings of most auditoriums curved or padded in some way?
a) to deflect sound away from the audience
b) to deflect sound around the audience
c) to deflect sound above the audience
d) to deflect sound towards the audience
What part of the ear collects sound waves and directs them into the ear canal?
a) middle ear
b) inner ear
c) outer ear
d) ear canal
What part of the ear vibrates the eardrum when sound reaches it?
a) outer ear
b) middle ear
c) inner ear
d) ear canal
What part of the ear transmits sound energy in the form of electrical impulses to the brain?
a) inner ear
b) middle ear
c) outer ear
d) ear canal
What is/are some possible cause(s) of hearing loss?
a) disease
b) age
c) exposure to loud sounds
d) all of the above
change in frequency caused by the source of a sound moving
a) Doppler effect
b) fundamental frequency
c) natural frequency
d) reverberation
repeated echoes of sound
a) echo
b) overtone
c) reverberation
d) resonance
when an object begins vibrating because it absorbs energy from another vibrating object
a) reverberation
b) resonance
c) natural frequency
d) fundamental frequency
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