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WorksheetsMechanical Waves and Sound - Chapter 17 Physical Science
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
A disturbance in matter that carries energy from one place to another is called ___.
a)
a mechanical wave
b)
a jump
c)
an electromagnetic spectrum
d)
visible light
2.
The material through which a wave travels is called ___.
a)
mechanical wave
b)
the medium
c)
a vacuum
d)
the gel
3.
A mechanical wave is created by ___.
a)
work being done on a medium.
b)
an energy source causing vibrations to travel through a medium
c)
an energy source causing fluid to move
d)
an energy source jumping through molecules within a gas
4.
Which of the following is a characteristic used to classify a mechanical wave?
a)
the height of its crest
b)
the depth of its trough
c)
the way it travels through a medium
d)
the type of medium through which it travels
5.
The highest point of a wave above the rest position is the ___ and the lowest point below the rest position is the ___.
a)
crest, trough
b)
trough, crest
c)
crest, amplitude
d)
amplitude, crest
6.
Which best describes a transverse wave?
a)
a wave that causes the medium to vibrate at right angles to the direction in which the wave travels.
b)
a wave in which the vibration of the medium is parallel to, or in the same direction as, the direction in which the wave travels.
c)
a wave in which the vibration of the medium travels along the surface separating two mediums, air and water.
d)
None of the above.
7.
Which best describes a longitudinal wave?
a)
a wave that causes the medium to vibrate at right angles to the direction in which the wave travels.
b)
a wave in which the vibration of the medium is parallel to, or in the same direction as, the direction in which the wave travels.
c)
a wave in which the vibration of the medium travels along the surface separating two mediums, air and water.
d)
None of the above.
8.
Which best describes a surface wave?
a)
a wave that causes the medium to vibrate at right angles to the direction in which the wave travels.
b)
a wave in which the vibration of the medium is parallel to, or in the same direction as, the direction in which the wave travels.
c)
a wave in which the vibration of the medium travels along the surface separating two mediums, air and water.
d)
None of the above.
9.
When a longitudinal wave carries energy through a spring, the area where the coils of a spring are closer together that they would be in rest position is called ___.
a)
rarefaction
b)
compression
c)
medium
d)
prism
10.
The time required for one cycle, a complete motion that returns to its starting point, is called the ___.
a)
period
b)
frequency
c)
beat
d)
pitch
11.
The number of complete cycles in a given period of time is the __ of a periodic motion.
a)
period
b)
frequency
c)
wavelength
d)
pitch
12.
Frequency is measured in cycles per second, or hertz.
a)
True
b)
False
13.
A wave's frequency is measured in cycles per second, or hertz.
a)
True
b)
False
14.
Five cycles per minute is a frequency of five hertz.
a)
False
b)
True
15.
Any periodic motion has a frequency.
a)
True
b)
False
16.
The distance between a point on one wave and the same point on the next cycle of the wave is called ___.
a)
frequency
b)
wavelength
c)
pitch
d)
period
17.
Wavelength is directly proportional to frequency.
a)
True
b)
False
18.
An increase in amplitude will increase the loudness of a sound.
a)
False
b)
True
19.
Increasing the frequency of sound will cause a change in its pitch.
a)
True
b)
False
20.
An apparent change in frequency of a sound source that moves relative to an observer is called ___.
a)
the doppler effect
b)
rarefaction
c)
a decibel
d)
a node
21.
P wave
a)
transverse
b)
longitudinal
c)
surface
22.
An ocean wave
a)
transverse
b)
longitudinal
c)
surface
23.
Ultrasound is sound at frequencies that are lower than most people are capable of hearing.
a)
False
b)
True
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