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Waves and Sounds

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Oscillations and Waves: Period of a Beach Ball

WAVES-K3JWKH

VERN HART. Created for Albert.io. Copyright 2016. All rights reserved.

You are sitting on the beach watching a beach ball bob up and down in the ocean. The ball is floating on the surface of the water and as the waves pass by, it oscillates vertically along a straight line (the dotted line in the figure). You begin timing the motion of the ball.

Which of the following would cause an increase in the period of the ball's oscillation?

Select ALL that apply.

A

Increasing the amplitude of the waves while keeping the wavelength and velocity constant.

B

Decreasing the amplitude of the waves while keeping the wavelength and velocity constant.

C

Increasing the velocity of the waves while keeping the wavelength constant.

D

Decreasing the velocity of the waves while keeping the wavelength constant.

E

Increasing the wavelength of the waves while keeping the velocity constant.

F

Decreasing the wavelength of the waves while keeping the velocity constant.

G

Increasing the phase of the waves while keeping the wavelength and velocity constant.

H

Decreasing the phase of the waves while keeping the wavelength and velocity constant.