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Physical Science Chapter 17 Review Flashcards | StudBud
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Physical Science Chapter 17 Review
Physical Science Chapter 17 Review
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A review of mechanical waves and their properties for a high school physical science class
Flashcards
29 cards
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Practice quiz
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Questions
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Answers
1
In an earthquake, a P wave is a longitudinal wave. It moves through soil and rock as a
series of compressions and rarefactions.
series of faults.
series of crests and troughs.
wavy line.
2
Transverse and longitudinal waves both
have compressions and rarefactions.
move at right angles to the vibration of the medium.
are capable of moving the medium a long distance.
transfer energy through a medium.
3
Which wave will probably be diffracted the most by an obstacle?
the wave with the longest wavelength
a longitudinal wave
the wave that strikes a barrier with the slowest speed
the wave with the highest amplitude
4
Sonar equipment sends sound waves into deep water and measures
the time delay of the returning echoes.
refraction of the transmitted wave.
only the direction of the reflected wave.
interference of the transmitted and reflected waves.
5
Point A represents what part of the wave?
trough
node
rarefaction
crest
6
The disturbances in the medium are perpendicular to the direction of wave motion in
transverse waves
surface waves
longitudinal waves
electromagnetic waves
7
A standing wave may form when a wave undergoes what process?
refraction
deflection
reflection
diffraction
8
What is the amplitude of the wave in the picture?
2 cm
4 cm
0.8 cm
1.6 cm
9
When a sound source approaches you, the pitch you hear is
first higher and then lower than the pitch of the source.
lower than when the source is stationary.
higher than when the source is stationary.
the same as when the source is stationary.
10
What property of a wave determines how much it will diffract when it encounters an obstacle?
wavelength
speed
amplitude
polarization
11
Which wave causes the medium to vibrate only in a direction parallel to the wave’s motion?
transverse
surface
electromagnetic
longitudinal
12
The wavefront in the picture moves from A to B in 0.25 seconds. What is the wave's frequency?
2 Hz
4 Hz
0.5 Hz
0.25 Hz
13
Areas of compression and rarefaction are formed by what type of wave?
surface
electromagnetic
longitudinal
transverse
14
The part of the ear that sends coded nerve signals to the brain is
inner ear
outer ear
eardrum
middle ear
15
A mechanical wave generally does NOT
move the medium from one place to another.
move through solids.
disturb the medium
move through a medium.
16
Many musical instruments, including the piano, use what phenomenon to amplify sound?
tension
damping
pitch
resonance
17
The wavefront in the picture moves from A to B in 0.25 seconds. What is the wave's speed?
0.25 cm/s
4 cm/s
16 cm/s
1 cm/s
18
For refraction to occur in a wave, the wave must
enter a new medium at an angle.
enter a new medium head-on.
change direction within a medium.
strike an obstacle larger than the wavelength.
19
What is the wavelength of the wave in the picture?
2 cm
4 cm
1.5 Hz
0.8 cm
20
What type of wave is a sound wave?
surface
electromagnetic
transverse
longitudinal
21
A wave which does not appear to move through the medium is what?
surface wave
transverse wave
standing wave
longitudinal wave
22
A wave has a wavelength of 3 cm and a frequency of 9 hertz. What is its speed?
3 cm/s
27 cm/s
54 cm/s
9 cm/s
23
In refraction, when a wave travels from one medium to another, it
always moves in the same direction.
decreases in amplitude.
travels in the opposite direction.
changes speeds.
24
The points on a standing wave that show no displacement from rest position are what?
antinodes
troughs
peaks
nodes
25
In which medium does sound travel the fastest?
air
cast iron
fresh water
salt water
26
When two waves occupy the same space and the resulting wave has a smaller amplitude, this is
constructive interference
destructive interference
refraction
diffraction
27
A wave has a period of 0.6 seconds and a wavelength of 4.2 mm. What is the speed of the wave?
25 mm/s
13 mm/s
7 mm/s
0.1 mm/s
28
Ripples in a pond are an example of what type of wave?
surface
longitudinal
transverse
electromagnetic
29
The wavefront in the picture moves from A to B in 0.25 seconds. What is the wave's period?
0.5 seconds
1 second
0.25 seconds
2 seconds
