AnswersOC27 EarthSpace Sci-2001310-S2-NelsonProperties of Waves

Wave Interactions Answers

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1
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Which are examples of a medium?

A
water and air
B
amplitude and wavelength
C
crests and troughs
D
compressions and rarefactions
2
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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
3

Which best describes the relationship between the terms “frequency,” “wavelength,” and “hertz”?

A
Wavelength is the number of frequencies, which is measured in hertz.
B
Frequency is the number of wavelengths, which is measured in hertz.
C
Wavelength is measured from frequency to hertz.
D
Frequency is measured from wavelength to hertz.
4

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
5

Which refers to any disturbance that carries energy from one place to another through matter and space?

A
frequency
B
wave
C
hertz
D
pitch
6

This chart shows characteristics of three different waves, all with the same wavelength of 10 m but moving at different frequencies.

Question illustration
A
Wave Y is moving the fastest.
B
Wave X is moving the fastest.
C
All of the waves are moving at the same speed.
D
All of the waves have the same value of wavelengths per second.
7

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
8

A beam of light is traveling through a medium at 200,000 km/s. It enters a different medium and speeds up to almost 250,000 km/s. Finally, it enters a third medium and halts.What were the media the light traveled through, in order?

A
liquid, opaque solid, gas
B
opaque solid, gas, liquid
C
gas, liquid, opaque solid
D
liquid, gas, opaque solid
9

Julia performs an experiment to measure the wavelength of four different waves and records her data in the table below.Which accurately ranks the waves from the lowest energy wave to the highest energy wave?

Question illustration
A
1 → 4 → 3 → 2
B
2 → 3 → 4 → 1
C
3 → 2 → 4 → 1
D
1 → 4 → 2 → 3
10

Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. The wavelength changes from 2 m in the air to 8 m underwater. How has the change in media affected the frequency of the wave?

A
It increased.
B
It decreased.
C
It stayed the same.
D
It cannot be calculated.
11

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.
12

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
13

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.
14

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.
15

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
16

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

A
wavelength
B
amplitude
C
frequency
D
hertz

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