Question

Which feature of a wave can be calculated using the formula below? number of wavelengths / time wavelength speed frequency amplitude

Answer 1

Answer:

its letter c

Explanation:

Answer 2

Answer:

Frequency

Explanation:

$\dfrac{\text{Number of wavelengths}}{\text{Time }} = \textbf{frequency}$

If you are at the beach, you may see six waves go past you in half a minute.

An hour later, you see only three waves in the same time.

You would say that the frequency of the waves has decreased.

A is wrong. Wavelength is the distance between one wave and the next.

B is wrong. Speed is a measure of how fast the waves are travelling.

D is wrong. Amplitude is the height of a wave from its resting position (half the distance from a peak to a trough).