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Cambridge Checkpoint Science 8: Sound

Total questions: 40

Worksheet time: 22mins

Name
Class
Date
1.
Sound travels as
a)
transverse waves
b)
longitudinal waves
c)
seismic waves
d)
air waves
2.

Sound vibrations travel down the ear canal to the

a)

hammer

b)

anvil

c)

cochlea

d)

eardrum

e)

stirrup

3.

Sound waves are collected by the outer ear (pinna) , then travel down the ear canal. The sound wave in the ear canal is caused by

a)

air particles travelling all the way from the outer ear, then through the ear canal

b)

air particles in the ear canal vibrating up and down

c)

air particles in the ear canal vibrating backwards and forwards, but not really changing where they are

d)

nerve cells vibrating in the liquid found in the ear canal

4.
As air particles are pushed together, they create a region of higher density and pressure in a longitudinal wave.  These areas are called:
a)
sound waves
b)
rarefactions
c)
compressions
d)
transverse wave
5.
As air particles become less crowded a region of lower density and pressure is created. This part of a longitudinal wave is called a: 
a)
compression
b)
sound wave
c)
rarefaction
d)
transverse wave
6.
Sound travels at different speeds through different mediums.  Through which medium would your voice travel the fastest?
a)
Air on a cold winter morning
b)
Air on a hot summer afternoon
c)
A metal wall
d)
A pool
7.
This part of the ear is vibrated by sound waves.  It is a lightly stretched membrane that is the entrance to the middle ear.
a)
Pinna
b)
Ear Drum
c)
Hammer
d)
Cochlea
8.
This fluid-filled snail-shaped sack in the inner ear contains hair cells attached to nerves which transmit sound information to the brain. 
a)
Cochlea
b)
Hammer
c)
Anvil
d)
Stirrup
9.
Your __________ vibrate when you talk
a)
stomach
b)
lips
c)
ears
d)
vocal cords
10.

An oscilloscope (with a microphone) can show an electrical representation of sound ________

a)

vibrations

b)

patterns

c)

imitations

d)

waves

11.
An image made by an ultrasound machine, often used for seeing internal organs in humans is called a(n):
a)
infrasound
b)
Ultrasound
c)
doppler effect
d)
decibel
12.
A sound with a high pitch would have
a)
a low frequency
b)
a high frequency
c)
a low amplitude
d)
a high amplitude
13.
Sound can be measured in ________.  It is recommended that humans not be exposed to volumes over 85 _______ for long periods of time. 
a)
decimals
b)
frequency
c)
hertz
d)
decibels
14.
A sound with a low pitch would have a:
a)
high frequency
b)
low frequency
c)
high amplitude
d)
low amplitude
15.
A very loud sound would have a(n):  
a)
high frequency
b)
low frequency
c)
high amplitude
d)
low amplitude
16.

Sound travels in air at a speed of about:

a)

30 m/s

b)

300 m/s

c)

3000 m/s

d)

300 000 000 m/s

17.

Reflection is the bouncing back of a wave after it strikes a barrier. A reflected wave is called a(n):

a)

incident wave

b)

refracted wave

c)

echo

d)

sound wave

18.
A very quiet sound would have a (n):
a)
high frequency
b)
low frequency
c)
high amplitude
d)
low amplitude
19.
A sound with a high frequency has a _____ pitch. A sound with a ____ frequency has a low pitch.
a)
high, low
b)
low, high
c)
medium, high
d)
high, medium
20.
A back and forth movement of matter
a)
volume
b)
vibration
c)
pitch
d)
frequency
21.

The .......... of a sound tells us how high or low it is.

a)

frequency

b)

volume

c)

amplitude

d)

pitch

22.
Sound travels FASTEST through which of these materials?
a)
Air
b)
Empty space
c)
Metal
d)
Water
23.
Sound is caused by? 
a)
force
b)
vibrations
c)
instruments
24.

Sound is a form of?

a)

energy

b)

pitch

c)

volume

d)

unwanted noise

25.
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.
26.

______________ sounds have a larger amplitude

a)

quiet

b)

loud

27.

Pitch describes human perception of which property?

a)

resonance

b)

frequency

c)

amplitude

d)

overtones

28.

Within the cochlea (inner ear), sound waves are transmitted by

a)

air particles moving all the way around the cochlea

b)

air particles in the cochlea vibrating up and down

c)

air particles in the cochlea moving backwards and forwards

d)

nerve cells vibrating in the liquid found in the cochlea

29.

Select the most appropriate answer from the choices below:

Sounds are produced by

a)

any vibrating object

b)

oscilloscopes

c)

waves travelling through space

d)

students when they get their science test results

e)

musical instruments

30.

Bigger vibrations produce

a)

higher frequency sound

b)

lower frequency sound

c)

louder sound

d)

quieter sound

31.

Slower vibrations produce

a)

sound with a higher pitch

b)

sound with a lower pitch

c)

louder sound

d)

quieter sound

32.

Smaller vibrations produce

a)

higher frequency sound

b)

lower frequency sound

c)

louder sound

d)

quieter sound

33.

An object that vibrates 120 times in one minute has a frequency of

a)

0.5 Hz

b)

2.0 Hz

c)

60 Hz

d)

120 Hz

34.

The amplitude of a vibration is

a)

the distance from the lowest point to the highest point of a vibration

b)

the distance between two particles that are moving the same way in a wave

c)

half the distance between the lowest point to the highest point of a vibration

d)

half the distance between two particles that are moving the same way in a wave

35.

The reason you cannot hear the "Death Star" exploding is because

a)

you have a helmet on in your X-wing fighter, blocking out the noise.

b)

you are moving faster than sound

c)

sound cannot travel in the cockpit of your X-wing fighter

d)

sound cannot travel through space

36.

When the particles in a wave push each other back and forth, in the direction the wave is moving, this is called a

a)

longitudinal wave

b)

transverse wave

c)

sound wave

d)

water wave

37.

When the particles in a wave move up and down, perpendicular to the direction the wave is moving, this is called a

a)

longitudinal wave

b)

transverse wave

c)

sound wave

d)

water wave

38.

Sound waves travel fastest in

a)

a vacuum

b)

cold air

c)

warm air

d)

water

e)

a solid material

39.

Sound waves travel slowest in

a)

water

b)

cold air

c)

warm air

d)

a solid material

40.

The range of human hearing is from

a)

20 Hz to 2000 Hz

b)

20 Hz to 20 000 Hz

c)

20 Hz to 200 000 Hz

d)

200 Hz to 20 000 Hz

e)

200 Hz to 200 000 Hz

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