Worksheets4.2 Interactions of Sound Waves
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
A car with loud bass speakers drives by a house. The windows of the house vibrate significantly. Which term BEST describes why the windows vibrate?
a)
interference
b)
resonance
c)
reflection
d)
echoing
2.
Which is the BEST explanation for why, on average, children playing inside a house are louder than those playing outside?
a)
Sound waves can reflect off many walls and surfaces.
b)
Houses are heated, so sound waves travel faster in the air.
c)
Constructive interference from walls and wood floors is common.
d)
Vibrations in the windows causes the sounds to intensify.
3.
A hiker is in the Grand Canyon. Which surface would provide the clearest echo?
a)
the rocky canyon walls
b)
the thick desert shrubs
c)
the sandy riverbank
d)
the surface of the river
4.
Two friends are at a concert. They discover a location in the auditorium where the band sounds significantly louder than in other places. What is the best explanation for the strengthening of the sound?
a)
constructive interference
b)
destructive interference
c)
medium temperature
d)
resonance
5.
In which of the following settings would sound waves travel the fastest through the air?
a)
a cool, rainy day in Seattle
b)
a desert in southern Texas
c)
a winter day in North Dakota
d)
in orbit around Earth
6.
When Consuelo struck a tuning fork and held it lose to a string on a guitar, the string began to vibrate on its own and make a sound. Which statement best explains why the string vibrated without anyone touching it?
a)
The string vibrated because of destructive inference between its sound waves and those of the tuning fork.
b)
The tuning fork produced ultrasonic frequencies beyond human hearning.
c)
The tuning fork and the guitar string both created mechanical waves.
d)
The string vibrated because of resonance, which happened because the tuning fork and guitar string have the same natural frequency.
7.
Which material best absorbs sound waves in a room?
a)
heavy curtains
b)
hardwood floors
c)
brick walls
d)
cement floors
8.
Which of the following is the best example of resonance?
a)
a bat uses ultrasonic waves to locate its next meal
b)
a telephone changes sound waves into electric signals
c)
a guitar body vibrates from the sound of a plucked string
d)
a jet produces a sonic boom as it breaks the sound barrier
9.
What kind of waves do bats use for echolocation?
a)
infrared waves
b)
ultrasonic waves
c)
transverse waves
d)
electromagnetic waves
10.
Which of the following is the BEST example of resonance?
a)
A singer holds a high-pitched note, causing a crystal glass to vibrate until it shatters.
b)
Sound waves directed into a cave strike the cave's rear wall, reflecting back to their source.
c)
A doctor send ultrasonic waves into a person's body, producing an image of the person's internal organs.
d)
Two sound waves of nearly equal frequency interfere, producing an alternating pattern of loud and soft sounds.
11.
Which of the following surfaces would most likely cause sound waves to scatter rather than reflect directly back?
a)
A polished marble floor
b)
A rough, uneven wall
c)
A smooth metal surface
d)
A flat glass window
12.
What is the primary reason sound travels faster in water than in air?
a)
Water is denser than air
b)
Water is less dense than air
c)
Sound waves are electromagnetic
d)
Water molecules are larger
13.
Which phenomenon occurs when two sound waves of slightly different frequencies interfere with each other?
a)
Resonance
b)
Doppler effect
c)
Echo
d)
Beats
100 %
