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Sound Waves Review

Total questions: 50

Worksheet time: 53mins

Name
Class
Date
1.
The number of wavelengths that pass a point each second
a)
frequency
b)
wavelength
c)
pitch
d)
amplitude
2.
Material (matter) through which a wave travels
a)
medium
b)
Doppler Effect
c)
sound
d)
pitch
3.
The part of a longitudinal wave where the particles of the medium are close together.
a)
rarefaction
b)
compression
c)
crest
d)
trough
4.
A part in a longitudinal wave where the particles are spread apart
a)
compression
b)
rarefaction
c)
crest
d)
trough
5.
If distance C on the diagram increased, what would happen to the pitch? 
a)
The pitch would be louder. 
b)
The pitch would be softer. 
c)
The pitch would be higher. 
d)
The pitch would be lower. 
6.
What does the motion of the source of a sound cause? 
a)
resonance
b)
shock waves
c)
the Doppler effect
d)
echolocation
7.

When a sound is louder what measurement gets bigger?

a)

frequency

b)

amplitude

c)

wavelength

d)

crest

8.

What is a natural vacuum that sound cannot travel through?

a)

water

b)

air

c)

liquids

d)

outer space

9.

Which type of wave is pictured here?

a)

light Wave

b)

longitudinal Wave

c)

transverse Wave

d)

electromagnetic Wave

10.
If the distance represented by the letter A were increased, how would it change the way the sound was heard?
a)
The sound would be higher. 
b)
The sound would be lower. 
c)
The sound would be softer. 
d)
The sound would be louder. 
11.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
12.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
13.
Low frequency causes _____________ pitch.
a)
high
b)
low
14.

What state of matter allows sound to travel the slowest?

a)

solid

b)

liquid

c)

gas

d)

doesn't matter

15.

The letter "A" in this illustration is called what on a wave?

a)

amplitude

b)

frequency

c)

Hertz

d)

wavelength

16.
How would a person measure the wavelength on this sound wave?
a)
dense to less dense
b)
trough to crest
c)
compression to compression
d)
beginning of illustration to the end
17.

A disturbance that transfers energy from one place to another without transferring matter is called a __________.

a)

wave

b)

pitch

c)

trough

18.

True or False: You only hear a sound when the sound energy reaches your ears.

a)

True

b)

False

19.

A wave that requires a medium through which to travel is called a _________.

a)

mechanical wave

b)

electromagnetic wave

c)

chemical wave

d)

pitch

20.

Sound waves travel the fastest through __________.

a)

gas

b)

solids

c)

liquids

21.

A reflected sound wave

a)

frequency

b)

pitch

c)

echo

d)

rarefaction

22.
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's
a)
concussion. 
b)
amplitude. 
c)
reflection.
d)
frequency. 
23.
The speed of a sound wave depends on
a)
the frequency
b)
the medium
c)
both air temperature and medium
d)
the air temperature
24.

Sound waves move more quickly through _________________ matter.

a)

dense

b)

light

25.
What unit is the intensity of sound measured in?
a)
decibels (dB)
b)
Hertz (Hz)
c)
meters per second (m/s)
d)
meters
26.
Doubling the frequency of a wave source doubles the speed of the waves.
a)
true
b)
false
27.
As light waves pass through openings in a barrier or around the edges of an object, the waves change direction or 
a)
are absorbed
b)
diffract
c)
reflect
d)
refract
28.
These 2 sound waves differ in....
a)
frequency
b)
amplitude
c)
both frequency and amplitude
d)
none of the above
29.
The Doppler effect can cause an apparent change in...
a)
loudness
b)
intensity
c)
pitch
d)
reasonance
30.

A sound wave is produced when an object …

a)

vibrates

b)

accelerates

c)

remains stationary

31.

What best describes the Doppler effect?

a)

An apparent change in frequency of a wave due to the relative motion between a wave source and an observer

b)

When sound changes pitch

c)

When light changes color

d)

An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

32.

During a pitch-black night, you hear a police siren is getting higher and higher. Would the car be coming toward you or driving away from you?

a)

coming toward you

b)

away from you

c)

going circles around you

d)

parking still

33.

If a car's horn is blowing as the car moves AWAY from you,the horn seems...

a)

low pitched

b)

high pitched

c)

normal

34.
Frequency and wavelength have an indirect relationship.  As the wavelength increases, the frequency
a)
increases
b)
decreases
35.
Frequency and energy have a direct relationship.  This means as the frequency increases the energy
a)
increases
b)
decreases
36.
Which wave has a greater frequency?
a)
A
b)
B
37.

When an airplane is flying above, you hear the sound of the plane further back than where the plane actually is in the air. Why is this?

a)

The frequency of the plane is higher than the frequency of the sound.

b)

The frequency of the sound is higher than the frequency of the plane.

c)

The speed of the sound is faster than the speed of the plane.

d)

The speed of the plane is faster than the speed of the sound.

38.

How is the frequency of the sound waves in front of the moving source different from the frequency of the sound waves behind the moving source.

a)

The frequency is lower in front of the source than behind

b)

The frequency is higher in front of the source than behind

c)

The frequency is the same in front as it is behind

d)

Impossible to tell without measuring

39.

Which of the waves below requires the particles of a medium to vibrate and transfer energy?

a)

infrared light wave

b)

radio wave

c)

seismic wave

d)

visible light wave

40.

Which list below includes ONLY mechanical waves?

a)

seismic waves, sound waves, and water waves

b)

radio waves, sound waves, waves in a rope

c)

infrared rays, ultraviolet rays, visible light

d)

seismic waves, microwaves and x-rays

41.

An undersea earthquake centered 1000 miles off the coast of Hawaii creates a tsunami headed toward the Hawaiian coast. This tsunami encounters a fishing boat 500 miles from the coast. What will happen to the boat?

a)

The tsunami will pick up the boat at its current position and carry the boat on its crest all the way into the coast.

b)

The tsunami will carry the boat toward the coast for many miles, but because the boat is so large, the wave canot carry it all the way to shore.

c)

The boat will be lifted up as the wave passes beneath it, and then be pushed many miles from the coast.

d)

The boat will bob up and down as the wave passes beneath it, but the wave will not carry the boat either toward or away from shore.

42.

A student listed some properties of waves.


Which properties did the student list incorrectly?

a)

3 and 2

b)

4 and 1

c)

2 and 4

d)

1 and 3

43.

The diagram shows a research vessel using sonar to map the ocean floor.


Upon which basic behavior of sound waves does this technology depend?

a)

absorption

b)

compression

c)

reflection

d)

refraction

44.

The students in the diagram are communicating with cans and string.


Which is the most likely explanation of how the students can hear and communicate using the objects?

a)

A mechanical wave transfers sound through the string.

b)

Sound bounces off the can and echoes.

c)

Sound travels through the string as an electromagnetic wave.

d)

A transverse wave transfers sound through the string.

45.

As any type of wave travels through a medium, what is true about the particles in the medium?

a)

The particles of the medium move in a straight line and are carried with the wave.

b)

the particles of the medium move up and down and are carried with the wave.

c)

The particles of the medium are not carried along with the wave.

d)

the particles of the medium move back and forth and are carried with the wave.

46.

A boy has a cork on his fishing line in a lake. His brother throws a rock in the lake near where he is fishing, and the waves created from the rock splashing cause the boy's cork to bob up and down for over a minute. What is the medium for the waves in this scenario?

a)

the cork

b)

the water

c)

the rock

d)

the fishing line

47.

This image depicts which of the following wave behaviors?

a)

reflection

b)

refraction

c)

diffraction

d)

resonance

48.

This image depicts which of the following wave behaviors?

a)

absorption

b)

Doppler effect

c)

polarization

d)

diffraction

49.

When a sound wave experiences reflection, we hear

a)

a louder sound.

b)

an echo.

c)

a quieter sound.

d)

nothing.

50.

What unit is the frequency of sound measured in?

a)

decibels (dB)

b)

Hertz (Hz)

c)

meters per second (m/s)

d)

meters