AnswersPhysical ScienceProperties of Waves

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

A
It is darker.
B
It is lighter.
C
It is lower.
D
It is higher.
4

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

A
0.023 meters per second
B
43.5 meters per second
C
89 meters per second
D
174 meters per second
7

Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32 point 4 centimeters If he measures the frequency as 3 hertz, which statement about the wave is accurate?

A
The wave has traveled 32 point 4 centimeters in 3 seconds.
B
The wave has traveled 32 point 4 centimeters in 9 seconds.
C
The wave has traveled 97 point 2 centimeters in 3 seconds.
D
The wave has traveled 97 point 2 centimeters in 1 second.
8

Which equation could be rearranged to calculate the frequency of a wave?

A
frequency is equal to wavelength over speed
B
wavelength is equal to frequency over speed
C
frequency is equal to speed times wavelength
D
wavelength is equal to speed over frequency
9

What is the speed of a wave with a wavelength of 3 point 0 m and a frequency of 0 point 1 Hz ?

A
30 meters per second
B
0.3 meters per second
C
3.1 meters per second
D
0.03 meters per second
10

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

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

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