Chapter 3:
Sound and Hearing
Practice Test
1.
Which of the following will raise the pitch of the sound produced by a stringed instrument?
a.
increasing the length of the strings
b.
using heavier strings
c.
increasing the tension on the strings
d.
using fewer strings
Hint
2.
In which of the following materials does sound travel the fastest?
a.
aluminum
b.
air
c.
seawater
d.
vacuum
Hint
3.
How does the length of an object affect the sound it makes?
a.
Longer objects tend to vibrate more slowly and produce lower sounds.
b.
Longer objects tend to produce higher sounds.
c.
Shorter objects tend to produce lower sounds.
d.
Longer objects tend to vibrate more rapidly than shorter objects.
Hint
4.
Which of the following statements is true?
a.
Many animals produce a greater range of sounds than humans do.
b.
Many animals produce sounds that humans cannot hear.
c.
Shorter objects tend to produce lower sounds.
d.
All of the above.
Hint
5.
What is the term used to describe the tendency of an object to vibrate at the same frequency as another sound source?
a.
consonance
b.
reverb
c.
frequency
d.
resonance
Hint
6.
What unit is used to measure the number of vibrations per second?
a.
frequency
b.
hertz
c.
pitch
d.
period
Hint
7.
What happens to the pitch of a sound as the frequency increases?
a.
The pitch becomes louder.
b.
The pitch becomes quieter.
c.
The pitch is raised.
d.
The pitch is lowered.
Hint
8.
How are sounds produced?
a.
Sounds are produced by vibrating objects.
b.
Sounds are produced by creating patterns of compression and rarefaction.
c.
The pitch is raised.
d.
All of the above.
Hint
9.
What is it called when particles are pushed closer together?
a.
transmission
b.
vibration
c.
compression
d.
rarefaction
Hint
10.
What is the term used for the matter through which sound travels?
a.
liquid
b.
medium
c.
solid
d.
gas
Hint
