AnswersWA-Physical Science BLab: Newton's Laws of Motion

Properties of Waves Answers

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1
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Which describes the amplitude of a wave when it carries more energy?

A
It is higher.
B
It is lower.
C
It is darker.
D
It is lighter.
2
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A sound wave traveling downward with a speed of about 4,000 m/s suddenly slows to 1,500 m/s not far below the Earth’s surface.What has the sound wave most likely encountered?

A
a different kind of rock
B
an underground lake
C
an open cavity
D
a pile of dinosaur bones
3

2 sets of waves with the top waves labeled A having more closely spaced crests than the bottom waves labeled B.

Question illustration
A
Wave A: Longitudinal WaveWave B: Transverse Wave
B
Wave A: High Frequency WaveWave B: Low Frequency Wave
C
Wave A: Transverse WaveWave B: Longitudinal Wave
D
Wave A: Low Frequency WaveWave B: High Frequency Wave
4

What is the speed of a wave with a wavelength of 3 m and a frequency of .1 Hz?

A
0.03 m/s
B
0.3 m/s
C
3.1 m/s
D
30 m/s
5

What will most likely happen if a sound wave moves from the air through a solid?

A
It will increase in frequency.
B
It will decrease in speed.
C
It will increase in speed.
D
It will decrease in wavelength.
6

A wave is traveling at 36 m/s. If its wavelength is 12 m, how many times does a wavelength move across a set point every second?

A
one time
B
three times
C
twelve times
D
thirty-six times
7

Which refers to the distance between two crests or two troughs on a transverse wave?

A
wavelength
B
amplitude
C
frequency
D
hertz
8

What is the speed of a wave with a frequency of 2 Hz and a wavelength of 87 m?

A
0.023 m/s
B
43.5 m/s
C
89 m/s
D
174 m/s
9

Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32.4 cm. If he measures the frequency as 3 hertz, which statement about the wave is accurate?

A
The wave has traveled 32.4 cm in 3 seconds.
B
The wave has traveled 32.4 cm in 9 seconds.
C
The wave has traveled 97.2 cm in 3 seconds.
D
The wave has traveled 97.2 cm in 1 second.
10

Which are examples of a medium?

A
water and air
B
amplitude and wavelength
C
crests and troughs
D
compressions and rarefactions

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