a. The first diagram on the next page shows a wave. Copy the diagram and mark the

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a. The first diagram on the next page shows a wave. Copy the diagram and mark the amplitude, and label it A.

i. State the number of cycles (‘wavelengths’) shown in the diagram.


ii. This complete wave was produced in 0.15 s. Calculate the period (time for one wave).

iv. Use the equation frequency (Hz) = 1/ period (s) to calculate the frequency of the wave.

b. i. Sound is a longitudinal wave. Explain what is meant by a longitudinal wave.

ii. If the amplitude of a sound wave is increased, what difference would you hear?

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