Properties of Sound — Unit test Answers

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Tanner is running his finger around the top of a crystal glass with a natural frequency of 1100 hertz. If Tanner can cause the glass to resonate, it could create a high-pitched sound and shatter.

A
vibrate the glass at 550 hertz
B
vibrate the glass at 1100 hertz
C
increase the loudness of the vibration
D
decrease the loudness of the vibration
2
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What is common between transverse waves and longitudinal waves?

A
Both include an amplitude, crest, and rarefactions
B
Both move faster at higher temperatures
C
Both move slower through densely packed molecules
D
Both include a wavelength from compression to compression
3

Which statement can be made about the amplitude of any transverse wave?

A
It is the length from the midpoint to the crest.
B
It is half the length from the midpoint to the trough.
C
It is the length of the wavelength.
D
It is half the length of the wavelength.
4

Which process would correctly calculate the frequency of a wave?

A
dividing speed by wavelength
B
dividing frequency by wavelength
C
multiplying frequency by period
D
dividing wavelength by period
5

Yolanda is studying two waves. The first wave has an amplitude of 2 m, and the second has an amplitude of 3 m.

A
She can use destructive interference to generate a wave with an amplitude of 3.1 m.
B
She can use constructive interference to generate a wave with an amplitude of 1.5 m.
C
She can use destructive interference to generate a wave with an amplitude of 0 m.
D
She can use constructive interference to generate a wave with an amplitude of 3.5 m.
6

Jin has four colorful glass bottles on his windowsill. One is red, one is violet, one is green, and one is yellow. The light that passes through which bottle has the lowest frequency?

A
red
B
violet
C
green
D
yellow
7

Levi observed properties of three different waves and recorded observations about each one in his chart.

Question illustration
A
Wave W and Y are light waves. Wave X is a sound wave.
B
Wave W is a light wave.Waves X and Y are sound waves.
C
Waves Y is a sound wave. Waves X and W are light waves.
D
Wave W is a sound wave. Waves X and Y are light waves.
8

In which direction of the wave motion do longitudinal waves transfer energy?

A
perpendicular
B
parallel
C
close
D
equal
9

Which waves can travel through space?

A
electromagnetic waves only
B
mechanical waves only
C
electromagnetic and mechanical waves
D
longitudinal and electromagnetic waves
10

Which conditions produce low pitches from a guitar string?

A
short strings, more tension, thick strings
B
long strings, less tension, thick strings
C
short strings, less tension, thin strings
D
long strings, more tension, thin strings
11

Which situation would result in interference?

A
a wave bouncing off an object
B
a wave bending as it moves through an object
C
a wave scattering as it moves through an object
D
a wave increasing in energy as it hits another wave
12

Ingrid says that a red ball of clay appears red because the clay reflects red wavelengths. Simon says that the clay appears red because it allows red wavelengths to pass through it.Which statement best explains who is correct?

A
Ingrid is correct. The clay appears red because it reflects red wavelengths.
B
Ingrid is correct. The clay appears red because it is a type of matter.
C
Simon is correct. The clay appears red because it allows red wavelengths to pass through it.
D
Simon is correct. The clay appears red because it is a solid.
13

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?

A
Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.
B
Gamma rays have higher energy than microwaves because gamma rays have lower frequencies.
C
Infrared light has lower energy than X-rays because infrared light has shorter wavelengths.
D
Infrared light has lower energy than X-rays because infrared light has higher frequencies.
14

Which best describes what happens if two waves meet and build on each other?

A
constructive interference
B
destructive interference
C
reflection
D
absorption
15

Which do sound waves travel fastest through?

A
solids
B
gases
C
mixtures
D
liquids

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