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Chapter 16 - Sound Waves

Total questions: 51

Worksheet time: 46mins

Name
Class
Date
1.
High frequency causes __________ pitch
a)
high
b)
low
2.
Low frequency causes _____________ pitch.
a)
high
b)
low
3.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
4.
True or False: Sound travels better through solids than through liquids
a)
True 
b)
False
5.
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. 
6.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
7.
Which part of the ear contains tiny hairs that help translate sound vibrations into electrical signals to the brain
a)
eardrum
b)
cochlea
c)
hammer
d)
anvil
8.
Which feature of sound is determined by amplitude?
a)
Pitch
b)
Smoothness
c)
Loudness
9.

Sound is a form of _________________ that travels as waves through a ________________.

a)

light/ transparency

b)

thermal energy/ vibration

c)

mechanical energy/ medium

d)

frequency/ medium

10.
What state of matter allows sound to travel the slowest?
a)
Solid
b)
Liquid 
c)
Gas
d)
Doesn't Matter
11.
What two things affect the speed of sound?
a)
Density and Temperature 
b)
Wavelength
c)
Type of sound wave
d)
None of the Above
12.
The collection of reflected sounds from the surfaces in a closed space is called ___________. 
a)
reverberation
b)
echo
c)
echolocation
d)
reflection 
13.
Sounds with frequencies higher than 20,000 Hz are called what?
a)
sonic booms
b)
ultrasound
c)
subsonic
d)
super sonic
14.
Resonance can be used to do what to sound?
a)
change pitch
b)
reduce
c)
reverberate
d)
amplify
15.
The number of wavelengths that pass a point each second
a)
frequency
b)
wavelength
c)
pitch
d)
amplitude
16.

When the sound source moves, the frequency changes

(ex. police car siren sounding lower pitch after the car passes). This is called what?

a)

pitch

b)

frequency

c)

Doppler Effect

d)

medium

17.

A reflected sound wave or a wave that bounces off a surface

a)

frequency

b)

pitch

c)

echo

d)

rarefaction

18.
What does PITCH depend on?
a)
wave amplitude 
b)
wave frequency
c)
wave speed 
19.
Decibel is a measurement of ...
a)
loudness
b)
pitch
c)
mass
d)
density
20.
A disturbance that travels through a medium as a longitudinal wave
a)
sound
b)
wavelength
c)
pitch
d)
frequency
21.
Which material best absorbs sound waves in a room? 
a)
Heavy curtains
b)
Hardwood floors
c)
Brick walls
d)
Cement floors
22.
The amount of energy a wave carries determines its amplitude.
a)
True
b)
False
23.
Reverberation (echoes) in concert halls is caused by ___ of sound.
a)
reflections
b)
echolocation
c)
refractions
d)
diffusions
24.
Bats use ___ to navigate and find prey.
a)
infrasound
b)
echolocation
c)
the Doppler effect
d)
sonar
25.
A system of using the reflection of underwater sound waves is ___.
a)
acoustics
b)
radar
c)
sonar
d)
resonance
26.

___ is the study of sound for the designing of structures.

a)

Acoustics

b)

Reverberation

c)

Echolocation

d)

Infrasound

27.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
28.
Which part of the ear acts as a funnel to collect sound waves & direct them into the ear canal?
a)
outer ear 
b)
inner ear 
c)
middle ear
d)
eardrum
29.
___________ is a medical use of ultrasound.
a)
Breaking large kidney stones into tiny pieces 
b)
Helping people walk
c)
Healing arteries 
d)
Getting rid of a headache 
30.
The Doppler effect can cause an apparent change in...
a)
loudness
b)
intensity
c)
pitch
d)
resonance
31.
Which of the following do acoustical engineers NOT deal with when designing a space?
a)
absorption
b)
transmission
c)
reflection
d)
ultrasound
32.
You produce speech by vibration of the ____.
a)
lips
b)
skin
c)
throat bones
d)
vocal cords
33.
When sound passes through a medium it is called what?
a)
reflection
b)
transmission
c)
echo
d)
absorption
34.

What part of the ear sends signals to the brain?

a)

inner ear

b)

outer ear

c)

middle ear

35.

What part of the ear amplifies sound?

a)

inner ear

b)

middle ear

c)

outer ear

36.

If you increase the intensity of a sound, you are doing what?

a)

Making it louder.

b)

Making it softer.

c)

Making it higher.

d)

Making it lower.

37.

Select all of the parts of the ear that are found in the middle ear.

a)

ear canal

b)

eardrum

c)

stirrup

d)

cochlea

e)

anvil

38.

Select all of the parts of the ear found in the outer ear.

a)

hammer

b)

ear canal

c)

cochlea

d)

anvil

e)

eardrum

39.

Select all of the parts of the ear that make up the inner ear.

a)

hammer

b)

anvil

c)

cochlea

d)

stirrup

e)

ear canal

40.

What direction are particles vibrating when sound waves travel?

a)

Perpendicular to the direction it is moving.

b)

Parallel to the direction it is moving.

c)

In all different directions.

d)

There is no way of knowing.

41.

What does colder temperatures do to the speed of sound as it is traveling through air?

a)

increases it

b)

decreases it

c)

no change is observed

42.

What does colder temperature do to the speed of sound as it travels through a solid or liquid?

a)

it increases

b)

it decreases

c)

no way of knowing

43.

Sound waves are longitudinal waves that can only travel through ----.

a)

matter

b)

solids

c)

empty space

d)

force fields

44.

Centi

a)

green

b)

time

c)

hundred

d)

head

45.

Cephal

a)

hundred

b)

time

c)

head

d)

color

46.

chloro

a)

head

b)

color

c)

hundred

d)

green

47.

chromo

a)

color

b)

green

c)

hunded

d)

time

48.

chron

a)

time

b)

green

c)

color

d)

head

49.

Longitudinal move particles _________ to the direction of the wave.

a)

parallel

b)

perpendicular

50.
In General Sound waves travel the slowest in __________
a)
solid
b)
liquid
c)
Gas
d)
Plasma
51.
In General Sound waves travel the fastest in __________
a)
solid
b)
liquid
c)
Gas
d)
plasma

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