p39 - f=1 cycle in 8 seconds= 1/8 Hz 2 4 6 8 10 12 14 16 18...

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Determining wave frequency from a graph
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f Frequency = #of cycles/time Measured in Hertz (Hz)
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1 cycle = 1 full wave to repeat itself
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3 1 2 4 5 6 7 8 9 10 11 12 Time in seconds 3 cycles
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from 0 to 12 seconds 3 1 2 4 5 6 7 8 9 10 11 12 Time in seconds 0
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f=3 /1 2 s = ¼ Hz 3 1 2 4 5 6 7 8 9 10 11 12 Time in seconds
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Or determine the time for 1 full wave cycle
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1 cycle in 4 seconds= ¼ Hz 3 1 2 5 6 7 8 9 10 11 12 Time in seconds 0 4
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Period symbol T The time for 1 cycle
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The period for 1 wave is 4 seconds T=4 3 1 2 4 5 6 7 8 9 10 11 12 Time in seconds
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What is the frequency? 0 2 4 6 8 10 12 14 16 18 20 Time in seconds 22 24
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? 0 2 4 6 8 10 12 14 16 18 20 Time in seconds 22 24 3 cycles 0 to 24 seconds
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0 2 4 6 8 10 12 14 16 18 20 Time in seconds 22 24 3 cycles 0 to 24 seconds 3/24 s= 1/8 Hz
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OR Frequency – 1 cycle in x seconds
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Unformatted text preview: f=1 cycle in 8 seconds= 1/8 Hz 2 4 6 8 10 12 14 16 18 20 Time in seconds 22 24 On a piece of paper number 1 through 3 and determine the frequency of the following waves. #1 f= ? 1 2 3 4 5 6 7 8 9 10 11 12 Time seconds #2 f= ? Time seconds 2 4 6 8 10 12 14 16 18 20 22 22 24 26 #3 f = ? 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Time seconds Check your answers #1 f= 1/8 Hz 1 2 3 4 5 6 7 9 10 11 12 Time seconds 8 #2 f= 1/8 Hz Time seconds 2 4 6 10 12 14 16 18 20 22 22 24 26 8 #3 f = 1/20 Hz 5 10 15 25 30 35 40 45 50 55 60 65 70 Time seconds 20...
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p39 - f=1 cycle in 8 seconds= 1/8 Hz 2 4 6 8 10 12 14 16 18...

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