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Sound

Total questions: 50

Worksheet time: 59mins

Name
Class
Date
1.
You cannot hear ultrasound because it is:
a)
too loud
b)
too quiet
c)
high frequency
d)
low frequency
2.
What type of frequency does sonar use?
a)
High frequency
b)
Low frequency
c)
Medium frequency
d)
Any frequency
3.
Sound travels at 1400m/s in water. If a ship sends a sonar signal to map the bottom of the ocean and it returns after 2 seconds, how deep is the ocean?
a)
700m
b)
1400m
c)
2800m
d)
6000m
4.
What is ultrasound mostly used for ?
a)
Shipping
b)
Military
c)
Medical use
d)
Firefighter
5.
Infrasound is used in a variety of applications including sonar and ultrasound imaging.
a)
True
b)
False
6.
What are two ways that an ultrasound is used?
a)
transverse waves and longitudinal waves
b)
hertz and meters
c)
sonar and ultrasound imaging
d)
music instruments and amplify the sound
7.
You can hear ultrasound
a)
True
b)
False
8.
What frequency range represent the human hearing capacity
a)
Below 20 Hz
b)
Between 20 Hz and 20 000 Hz
c)
Between 20 000Hz and 40 000 Hz
d)
Above 20 000 Hz
9.

Ultrasound is used to break apart kidney stones.

a)

True

b)

False

10.

Ultrasound waves are electromagnetic waves.

a)

True

b)

False

11.

Ultrasound waves are sound waves that are too low pitched for the human ear to hear.

a)

True

b)

False

12.

Ultrasound occurs at frequencies above 20,000 Hz.

a)

True

b)

False

13.

Infrasound can be heard by humans.

a)

True

b)

False

14.

Infrasound occurs at frequencies below 20 Hz.

a)

True

b)

False

15.

Elephants produce infrasound to communicate over distances.

a)

True

b)

False

16.

A sound wave with a larger amplitude would be

a)

quieter

b)

louder

c)

higher pitched

d)

lower pitched

17.

Which of the following is NOT an electromagnetic wave?

a)

Infra-red

b)

Ultra Violet

c)

X-Ray

d)

Sound

18.
Pitch is related to 
a)
Frequency
b)
Amplitude
c)
Volume
d)
Loudness
19.
The farther away you are from the sound source
a)
The louder the sound  gets.
b)
The higher the pitch of the wave gets.
c)
The quieter the sound gets.
20.
The more energy you use to bang the table
a)
the higher the pitch
b)
lower the pitch
c)
gentler the sound
d)
Louder the sound
21.
Amplitude of a sound wave relates to 
a)
energy present in a sound wave.
b)
pitch of a sound wave
c)
low pitch of a sound wave
22.
A sound that is too high for humans to hear is called
a)
infrasound
b)
ultra beauty
c)
ultra sound
23.
A sound that is too low for humans to hear is called
a)
ultra sound
b)
ultra cute
c)
infrared
d)
infrasound
24.
Loudeness is measured in
a)
Hertz
b)
meters/ second
c)
Decibels
25.
How does sound travel?
a)
in only one direction
b)
in waves
c)
it doesn't travel
26.
Pitch is __________________.
a)
how loud or soft a sound is
b)
how high or low a sound is
c)
when sound comes back to you
27.
The longer the string on an instrument, the _________ the pitch.
a)
lower
b)
higher
c)
softer
28.
What causes sound?
a)
when the pitch is high
b)
when something vibrates
c)
when the volume is loud
29.
Sound travels fastest through...
a)
gas
b)
liquid
c)
solids/metals
d)
space
30.
Sounds travels slowest through...
a)
space
b)
solids/metals
c)
gas
d)
liquids
31.
What happens when we hear an echo?
a)
We know there is danger
b)
there must be someone yelling back to us
c)
Sound is reflected off a surface and repeated back
d)
sounds waves are traveling really fast
32.
What happens to our hearing if we listen to loud noises all the time?
a)
We appreciate music better
b)
we get a ringing in our ears
c)
we start to experience hearing loss
33.
Why do we see lightning before we hear the thunder?
a)
Our eyes trick us
b)
Light travels faster than sound
c)
they're two separate things
34.
How can we protect our ears from hearing loss?
a)
wear ear plugs
b)
put our fingers in our ears
c)
Try not to listen to loud things
d)
All of the above
35.
Sound is a form of? 
a)
energy
b)
pitch
c)
volume
36.
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.
37.
Sound does not travel in space because
a)
Space is too far away.
b)
There is no matter in space.
c)
Space is the final frontier
d)
Space has planets.
38.
You stand outside a room that has the doors and windows closed. Why can you still hear sounds made inside the room?
a)
Vibrations are absorbed in the doors and windows
b)
Vibrations are reflected inside the room
c)
Vibrations travel through the door and the window
d)
Vibrations echo in the room
39.

How can I produce a sound?

a)

heating an object

b)

hitting an object

c)

moving the mouth

d)

looking an object

40.

When people speak their ________ vibrate.

a)

ear drums

b)

vocal chords

c)

ears

d)

tongue

41.

Sarah and Maria made a telephone using two cans and a string. It was a very long string. Maria went upstairs in her house and Sarah stayed downstairs. Maria spoke softly into the can. "I can hear you!' Sarah said back. How can this happen?

a)

Sound waves travel through a vacuum.

b)

Sound waves travel from high to low.

c)

Sound waves travel through solids like the string.

d)

Maria talked so loudly that Sarah could hear her without the phone.

42.

Sound travels faster in objects that have a greater.....

a)

Mass

b)

Density

c)

Volume

d)

Yards

43.
Sound moves in a _________.
a)
Transverse wave
b)
Longitudinal wave
44.
Soft surfaces _______ sound waves. 
a)
Reflect
b)
Absorb
45.
________ describes how LOUD a sound is. 
a)
Amplitude
b)
Frequency 
46.
_______ is the number of waves that pass a certain point at an specific time. 
a)
Frequency 
b)
Pitch
c)
Amplitude
d)
I don't know
47.
___________ affects how fast or slow sound waves travel. 
a)
Temperature
b)
Speed
c)
Amplitude
d)
Frequency 
48.
What happens when you increase the amplitude of a sound?
a)
it makes the sound louder
b)
it makes the sound travel faster
c)
it increases the wavelength of the sound
d)
it increases the frequency of the sound
49.
Bats use ________ TO LOCATE MOSQUITOES IN THE AIR.
a)
solar
b)
ecology
c)
echolocation
d)
evolution
50.
How does a sound wave interact with a human ear?
a)
vibrates the ear drum
b)
bounces off the ear canal
c)
rotates the ear drum
d)
vibrates the ear canal

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