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5 Cards in this Set
- Front
- Back
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What is a beat? |
Described as two sound waves with different frequencies, that interfere and result in differences in amplitude with respect to time |
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What is the average frequency? |
The difference between the initial frequencies of two sound waves. It is an average of the two frequencies: (F1 + F2) / 2 where F1= frequency of first wave and F2=frequency of the second wave |
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What is the beat frequency? |
When two waves with different frequencies are added together, the resulting amplitude oscillates at a rate of the difference between the two frequencies Beat frequency = | F1 - F2 | (absolute value) |
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A wave of 655 Hz is added to a wave of 650 Hz, what is the average frequency? |
F1 + F2 /2 (655 Hz + 650 Hz)/2 = 652.5 Hz
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A wave of 655 Hz is added to a wave of 650 Hz, what is the beat frequency? |
|F1 - F2| |655 Hz-650 Hz|= 5 Hz |
