Waves Unit Test

9 of 109 of 10 Items

Question
The formula vw=f⋅λ
describes the relationship between the speed of a wave (vw
), and its frequency (f
) and wavelength (λ
).

For example, if a wave has a frequency of 120 Hz and a wavelength of 5m, it would have a speed of 600 m/s.

In one or two sentences, describe what would happen to the frequency of this wave if the wavelength is increased to 10m but the speed stays the same at 600 m/s.

(2 points)

Short Answer Rubric (2 points)
Points Awarded Criteria
2
The answer is very clear.

The answer is fully supported by details.

There may be a few errors in grammar, usage, or mechanics. Errors do not interfere with meaning.

1
The answer is somewhat clear.

Details are weak or not related.

There are some errors in grammar, usage, and mechanics. Errors interfere with meaning.

0
The question is not answered.

1 answer

The frequency of the wave would decrease if the wavelength is increased to 10m but the speed stays the same at 600 m/s.
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