Question

The what is s measure of the number of waves that pass a point in a given amount of time

Answer 1

The 'frequency' is the number of waves that pass a point in one second.

If the given amount of time is, say, 'Q' seconds, then the number of waves
that pass a point in the given amount of time is (Q) times (the frequency).

Answer 2

Frequency is the number of waves that pass a given point in a certain amount of time.