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Waves and Sound Exploration

Total questions: 56

Worksheet time: 45mins

Name
Class
Date
1.

What is the amplitude of a wave?

a)

The amplitude of a wave is the maximum height of the wave from its rest position.

b)

The amplitude is the speed of the wave.

c)

The amplitude is the wavelength of the wave.

d)

The amplitude is the frequency of the wave.

2.

Which of the following is a property of waves?

a)

Waves can reflect and refract.

b)

Waves are always stationary.

c)

Waves cannot carry energy.

d)

Waves can only travel in a straight line.

3.

What is the speed of light in a vacuum?

a)

299,792,458 meters per second

b)

150,000,000 meters per second

c)

299,792 kilometers per second

d)

300,000,000 meters per second

4.

Which part of the electromagnetic spectrum has the longest wavelength?

a)

Ultraviolet waves

b)

X-rays

c)

Infrared waves

d)

Radio waves

5.

What type of wave is sound?

a)

Sound is an electromagnetic wave.

b)

Sound is a surface wave.

c)

Sound is a longitudinal wave.

d)

Sound is a transverse wave.

6.

What is the relationship between frequency and wavelength?

a)

Frequency and wavelength are directly related.

b)

Wavelength increases as frequency increases.

c)

Frequency has no effect on wavelength.

d)

Frequency and wavelength are inversely related.

7.

What happens to sound waves as they travel through different mediums?

a)

Sound waves travel slower in solids than in liquids.

b)

Sound waves do not travel through any medium.

c)

Sound waves travel faster in solids than in liquids, and faster in liquids than in gases.

d)

Sound waves travel at the same speed in all mediums.

8.

Which of the following is NOT part of the electromagnetic spectrum?

a)

Sound waves

b)

Microwaves

c)

Radio waves

d)

Infrared waves

9.

What is the unit of frequency?

a)

Watts (W)

b)

Joules (J)

c)

Volts (V)

d)

Hertz (Hz)

10.

How does the frequency of a wave affect its pitch?

a)

Higher frequency results in a higher pitch, and lower frequency results in a lower pitch.

b)

Lower frequency results in a higher pitch

c)

Frequency has no effect on pitch

d)

Higher frequency results in a lower pitch

11.

What is the primary medium through which sound travels?

a)

Air

b)

Metal

c)

Wood

d)

Water

12.

What is the wavelength of a wave?

a)

The wavelength of a wave is the total energy carried by the wave.

b)

The wavelength of a wave is the distance between consecutive points of the same phase.

c)

The wavelength of a wave is the amplitude of the wave.

d)

The wavelength of a wave is the speed of the wave divided by its frequency.

13.

Which type of electromagnetic wave is used in microwaves?

a)

Radio waves

b)

Microwaves

c)

Ultraviolet waves

d)

Infrared waves

14.

What happens to the speed of sound in warmer air?

a)

The speed of sound decreases in warmer air.

b)

The speed of sound remains the same in warmer air.

c)

The speed of sound is unaffected by temperature changes.

d)

The speed of sound increases in warmer air.

15.

What is the range of human hearing in hertz?

a)

20 Hz to 20,000 Hz

b)

5 Hz to 50,000 Hz

c)

10 Hz to 15,000 Hz

d)

30 Hz to 25,000 Hz

16.

What is the difference between transverse and longitudinal waves?

a)

Transverse waves move perpendicular to wave direction; longitudinal waves move parallel.

b)

Transverse waves are sound waves; longitudinal waves are light waves.

c)

Transverse waves move parallel to wave direction; longitudinal waves move perpendicular.

d)

Transverse waves can travel through solids only; longitudinal waves can travel through all states of matter.

17.

Which electromagnetic waves are used for communication?

a)

Ultraviolet waves

b)

Visible light waves

c)

Radio waves, microwaves, and infrared waves

d)

X-rays

18.

What is the effect of increasing the amplitude of a sound wave?

a)

The sound travels faster.

b)

The pitch of the sound increases.

c)

The sound becomes softer.

d)

The sound becomes louder.

19.

What types of waves can travel through empty space AND mediums?

a)

Longitudinal

b)

Mechanical

c)

Electromagnetic

20.

Which 2 types of waves require a medium to travel?

a)

Electromagnetic

b)

Mechanical

c)

Light

d)

Sound

21.

Which of the following is a mechanical wave?

a)

X-ray

b)

Infrared

c)

Radio waves

d)

Sound

22.

What medium do sound waves travel fastest through?

a)

Solids

b)

Liquids

c)

Gases

23.

The height of a wave from its resting point (B).

a)

Frequency

b)

Wave speed

c)

Wavelength

d)

Amplitude

24.

The length of a wave, from crest to crest or trough to trough. (D)

a)

Frequency

b)

Wave speed

c)

Wavelength

d)

Amplitude

25.

The number of waves passing a given point each second is:

a)

Frequency

b)

Wave speed

c)

Wavelength

d)

Amplitude

26.

What is the correct formula for wave speed?

a)

Wave speed = frequency x wavelength

b)

Wave speed = amplitude x wavelength

c)

Wave speed = amplitude x period

d)

Wave speed = frequency x period

27.

As wavelength decreases, the crests of the wave:

a)

become wider

b)

become shorter

c)

get closer together

d)

get farther apart

28.

If a wave has a long wavelength, it will have __________ energy.

a)

High

b)

Medium

c)

Low

29.

A substance (like solid, liquid or gas) that the energy of a wave can travel through

a)

amplitude

b)

compression

c)

medium

d)

frequency

30.

The highest point on a wave.

a)

frequency

b)

compression

c)

trough

d)

crest

31.
a)
Longitdinal Wave
b)
Transverse Wave
32.
What type of wave is this?
a)
Longitudinal
b)
Transverse
33.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
34.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
35.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
36.
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
a)
34 m/s
b)
3400 Hz
c)
3400 m/s
d)
34 Hz
37.
 A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
a)
25 m
b)
125 m
c)
5 m
d)
25 m/s
38.
What is the speed of a 20 Hz with a 4m wavelength?
a)
0.2 m/s
b)
5 m/s
c)
80 m/s
d)
320 m/s
39.
The speed of sound in ___ is greater than the speed of sound in water.
a)
air
b)
steel
c)
cork
d)
water vapor
40.
Reverberation (echoes) in concert halls is caused by ___ of sound.
a)
reflections
b)
echolocation
c)
refractions
d)
diffusions
41.
Bats use ___ to navigate and find prey.
a)
infrasound
b)
echolocation
c)
the Doppler effect
d)
sonar
42.
A system of using the reflection of underwater sound waves is ___.
a)
acoustics
b)
radar
c)
sonar
d)
resonance
43.
 Scientists and engineers may recommend carpets and draperies for the walls of a concert hall to reduce excess ___.
a)
echolocation
b)
reverberation (echo)
c)
frequency
d)
amplitude
44.
Sound is caused by ___.
a)
energy
b)
a wave
c)
a medium
d)
vibrations
45.
Sound waves with frequencies greater than 20,000 Hz are called ___ waves.
a)
transverse
b)
mechanical
c)
electromagnetic
d)
ultrasound
46.
As the frequency of a sound wave ___, the pitch becomes lower.
a)
increases
b)
decreases
c)
does not change
d)
cancels out
47.
___ is the study of sound.
a)
Acoustics
b)
Reverberation
c)
Echolocation
d)
Infrasound
48.
___ is when two frequencies match up and increase in amplitude.  Example:  Singers can make a glass break by matching its frequency.
a)
Pitch
b)
Resonance
c)
Frequency
d)
Ultrasound
49.

The distance between two consecutive regions of high concentration of air particles (high density and pressure) is the _________ of a sound wave.

a)

Amplitude

b)

Frequency

c)

Speed

d)

Wavelength

50.

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)

Crest

b)

Compression

c)

Rarefaction

d)

Frequency

51.

As air particles are pushed together, they create a region of higher density and pressure in a longitudinal wave. These areas are called:

a)

Trough

b)

Compression

c)

Rarefaction

d)

Frequency

52.

What is the pitch of a sound wave?

a)

How loud or soft sound is.

b)

How high or low sound is.

c)

A material that sound travels through.

d)

Back and forth movement of the air particles.

53.

What is the volume of a sound wave?

a)

How loud or soft sound is.

b)

How high or low sound is.

c)

A material that sound travels through.

d)

Back and forth movement of the air particles.

54.

Why can't we hear sound in space?

a)

The helmet blocks the sound and you can't take it off to hear it.

b)

Sound travels so slow in vacuum, that it never gets to your ears.

c)

Sound needs a material to travel through, so it can't travel through vacuum.

d)

Don't know, I've never been to space.

55.

Why do we hear echos?

a)

Sound waves get reflected off a surface and travel back to us.

b)

There is a second sound source emitting sound back at us.

c)

Sound waves get refracted and bend back to us.

d)

Sound waves travel really fast!

56.

Why do we see lightning before thunder?

a)

Lightning happens before thunder.

b)

The speed of light is greater than the speed of sound.

c)

Our eyes trick us.