Lesson 8.1 Properties of Waves Answers

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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.
24

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
25

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
26

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.
27

Aansi wants energy on a sound wave to be carried more quickly through a metal medium. Which could she do?

A
decrease the temperature
B
increase the temperature
C
use a gas medium instead
D
use a liquid medium instead
28

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
29

A wave of infrared light has a speed of 6 m/s and a wavelength of 12 m. What is the frequency of this wave?

A
0.5 Hz
B
2.0 Hz
C
18 Hz
D
72 Hz

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