Unit: Waves
Year: 1995 Question#: 34
Question:
The diagram above shows a piston being moved back and forth to generate a wave. The piston produces a compression, C , every 0.50 second. The frequency of this wave is
(1 ) 1.0 Hz
(2 ) 2.0 Hz
(3 ) 5.0 x 10-1
(4 ) 3.3 x 102
What is this question really asking?
Explanation by: Jay D
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Answer 1
1.0 Hz
INCORRECT
The formula to use is T=1/f (reference tables) return to top
Answer 2
2.0 Hz
CORRECT
Once you realize that the period of the wave is given to you as 0.5 seconds per wave then the formula to use is T=1/f (reference tables)
f=1/0.5s
f=2Hz return to top
Answer 3
5.0 x 10-1 Hz
INCORRECT
The formula is f=1/T(reference tables) return to top
Answer 4
3.3 x 102 Hz
INCORRECT
The formula is f=1/T(reference tables) return to top
What's this question really asking?
This question is asking, if a piston generates a wave which produces a compression every half a second, what is the frequency? return to top
