Physics Review Question

Unit: Waves
Year: 1990 Question#: 40
Question: A periodic wave with a frequency of 10 hertz would have a period of:

(1 ) 1s
(2 ) 0.1s
(3 ) 10s
(4 ) 100s

What is this question really asking?




Explanation by: Joe W. (no last names)

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Answer 1
1 s

INCORRECT - because the inverse of frequency is not 15.

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Answer 2
0.1 s

CORRECT - because 10 hertz = 10/1 hz, so the period is 1/10s.
f=1/T
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Answer 3
10 s

INCORRECT - because the inverse of freq. is not 10s.
f=1/T
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Answer 4
100s
INCORRECT- because the inverse of freq. is not 100s.
f=1/T
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What's this question really asking?

What is the inverse of 10 hertz. return to top

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