In this lesson, we will learn how to determine the change in the displacement of points on a wave along its propagation direction at different times.

Q1:

Which of the following formulas correctly relates the displacement of a point on a wave, 𝑠, to the distance, 𝑥, from the source of the wave, the time, 𝑡, that the wave has been generated for, the amplitude, 𝐴, of the wave, the frequency, 𝑓, of the wave, and its wavelength, 𝜆?

Q2:

Which of the following formulas correctly relates the angular frequency 𝜔 of a wave to its frequency 𝑓?

Q3:

A wave has a period 𝑇. Which of the following formulas correctly represents the number of complete oscillations that will pass through a certain point in a time 𝑡?

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