Chapter 3 Test Study Guide

In a wave model, what term describes the number of waves that pass a specific point in a given timeframe?

• speed

• amplitude

• frequency

• wavelength

When studying wave models, from where is the amplitude of a wave measured?

• the crest to the trough

• the rest position to the crest

• the crest to the following crest

• the initial to the end point of the wave

In a wave model, if the speed of a wave decreases, what typically happens to its frequency?

• The frequency increases.

• The frequency decreases.

• The frequency remains the same.

• The frequency is unaffected by the speed of the wave.

When using wave models, what does the wavelength represent?

• the distance between two consecutive crests

• the distance a wave travels in a given time

• the number of waves that pass a point in one second

• the height of the wave from the rest position to the crest

Two waves are traveling at the same speed, however, one has a lower amplitude. How do their loudness levels compare?

• The two waves are equally loud.

• The wave with a lower amplitude is louder.

• The wave with a lower amplitude is quieter.

• Loudness cannot be determined from amplitude.

If a wave has a shorter wavelength, what could be inferred about its frequency? 

• The wave's frequency remains the same.

• Frequency cannot be determined from wavelength.

• The wave has less wave cycles pass a certain point in some time.

• The wave has more wave cycles pass a certain point in some time.

The image shows a plot of three waves produced with a musical instrument.

Which two statements are correct for the given plot?

• X has a greater pitch than Y and Z.

• Y has a greater pitch than X and Z.

• Z has more amplitude than X and Y.

• Y has more amplitude than X and Z.

• X, Y, and Z have the same amplitude.

A student plots a wave in a graph.

What is the amplitude of this wave?

• 1.5 m

• 2.0 m

• 3.0 m

• 4.5 m

An oscilloscope measures a sound wave produced by a speaker.

What is the wavelength of this wave?

• 2 m

• 4 m

• 8 m

• 10 m

The table shows the distance between two consecutive crests of four different waves, P, Q, R, and S.

Which wave has the highest wavelength?

• wave P

• wave Q

• wave R

• wave S