Determining wave frequency from a graph

Determining wave frequency from a graph - Transcript

Determining wave frequency from a graph

f Frequency of cycles time

Measured in Hertz Hz

1 cycle 1 full wave to repeat itself

3 cycles

1

2

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5

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Time in seconds

from 0 to 12 seconds

0

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Time in seconds

f 3 1 2 s Hz

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Time in seconds

Or determine the time for 1 full wave cycle

1 cycle in 4 seconds Hz

0

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Time in seconds

Period symbol T The time for 1 cycle

The period for 1 wave is 4 seconds T 4

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Time in seconds

What is the frequency

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Time in seconds

3 cycles



0 to 24 seconds

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Time in seconds

3 cycles

0 3 24 s 1 8 Hz to 24 seconds

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Time in seconds

OR
Frequency 1 cycle in x seconds

f 1 cycle in 8 seconds 1 8 Hz

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Time in seconds



On a piece of paper number 1 through 3 and determine the frequency of the following waves

1 f

0

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Time seconds

2

f

0

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26

Time seconds

3 f

0

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70

Time seconds

Check your answers

1 f 1 8 Hz

0

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Time seconds

2

f 1 8 Hz

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Time seconds

3 f 1 20 Hz

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Time seconds