Determining wave frequency from a graph

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Slide 1

Determining wave frequency from a graph

Slide 2

f

Frequency = #of cycles/time

Measured in Hertz (Hz)

Slide 3

1 cycle = 1 full wave to repeat itself

Slide 4

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Time in seconds

3 cycles

Slide 5

from 0 to 12 seconds

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Time in seconds

0

Slide 6

f=3 /12 s = ¼ Hz

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Time in seconds

Slide 7

Or determine the time for 1 full wave cycle

Slide 8

1 cycle in 4 seconds= ¼ Hz

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Time in seconds

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Slide 9

Period symbol T

The time for 1 cycle

Slide 10

The period for 1 wave is 4 seconds T=4

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Time in seconds

Slide 11

What is the frequency?

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Time in seconds

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24

Slide 12

?

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Time in seconds

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3 cycles

0 to 24 seconds

Slide 13

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Time in seconds

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3 cycles

0 to 24 seconds

3/24 s= 1/8 Hz

Slide 14

OR

Frequency – 1 cycle in x seconds

Slide 15

f=1 cycle in 8 seconds= 1/8 Hz

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Time in seconds