wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Grade 8 Waves Revision Quiz

Total questions: 95

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

What property of the wave is represented by the letter "A"?

a)

amplitude

b)

crest

c)

trough

d)

wavelength

2.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
3.

The highest point on a wave is:

a)

the crest

b)

the trough

c)

the top

d)

the coast

4.

Which letter(s) represent the trough of the wave?

a)

A

b)

B & D

c)

D

d)

C & G

5.
Which wave has a greater frequency?
a)
A
b)
B
6.

Sound waves are an example of which type of wave?

a)

Transverse Wave

b)

Longitudinal Wave

7.

What is the correct equation for calculating Wave Speed

a)

Distance / Wave Length

b)

Time / Distance

c)

Frequency x Wave Length

d)

Distance x Time

8.

What is the wave speed if a wave has a frequency of 10Hz and a wave length of 2m?

a)

25m/s

b)

5m/s

c)

20m/s

d)

20Hz

9.

Sound waves can not travel through

a)

Earth.

b)

Empty space.

c)

Water.

d)

Dark.

10.

The refraction of a wave is caused by a


change in:-

a)

Amplitude.

b)

Frequency.

c)

Speed.

d)

Wavelength.

11.

Waves bouncing off a surface is an example of __________.

a)

Absorption

b)

Wavelength

c)

Reflection

d)

Refraction

12.
 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
13.

A wave has a frequency of 10 hz and a wavelength of 4 m. What is the velocity of the wave?

a)

24 m/s

b)

40 m/s

c)

2.5 m/s

14.

A wave with a frequency of 20 Hz and a wavelength of 100m has a velocity of what?

a)

2000 m\s

b)

5 m/s

c)

0.2 m/s

d)

200 m/s

15.
A high-frequency wave has ___________ than a low-frequency wave
a)
a longer wavelength
b)
a shorter wavelength
c)
the same wavelength
d)
a stronger source
16.

A student placed a pencil in a cup of water. The pencil appears broken because light

a)

always travels in a straight line.

b)

bends when it passes through water.

c)

makes the water in the glass evaporate.

d)

reflects the pencil on the water's surface.

17.
Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
18.

Based on the image, which medium has a larger index of refraction?

a)

Medium 1 has a larger index of refraction.

b)

Medium 2 has a larger index of refraction.

c)

Both mediums have the same index of refraction.

d)

Cannot be determined.

19.
We can see objects because of_______
a)
reflection
b)
refraction
c)
transmission
d)
diffraction
20.
The formula to calculate the refractive index is
a)
n=cv
b)
n=v/c
c)
n=c/v
d)
v=nc
21.
According to the Law of reflection, a light ray striking a mirror
a)
continues moving through the mirror in the same direction
b)
moves into the mirror at a slightly different angle
c)
bounces off the mirror toward the direction it came from
d)
bounces off the mirror at the same angle it hits.
22.
Glass has a _____________ index of refraction than air.
a)
Equal
b)
Greater
c)
Less
d)
Impossible to say
23.
The velocity of light in vacuum is _______ m/s
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
24.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
25.

In a transverse wave, the vibrations are (a)   to the direction of the wave.

26.

The vibrations in a longitudinal wave are (a)   to the direction of energy transfer.

27.

What is the index of refraction of a refractive liquid if the angle of incidence in the AIR is 35 degrees and the angle of refraction is 14 degrees? What is the correct way to solve?

a)

n (sin35) = (1)(sin14) ...n=0.42

b)

n (sin35) = (1)(sin14) ...n=2.37

c)

(1)(sin35) = n (sin14) ...n=2.37

d)

(1)(sin35) = n (sin14) ...n=0.42

28.

If light is traveling from air to water with an angle of INCIDENCE of 40 degrees, what is the angle of refraction? (n=1 air, n=1.33 water)

...How do you solve: (1)(sin40) = (1.33)(sinƟ)

a)

48 degrees

b)

2.07 degrees

c)

11.9 degrees

d)

28.9 degrees

29.

Light travels through a liquid at 2.25 E 8 m/s. What is the index of refraction of the liquid? n=c/v.....v=c/n.....c=3E8 m/s

a)

1.33

b)

1.0

c)

1.523

d)

2.45

30.

Glass has a _____________ index of refraction (or "n") than air.

a)

Equal

b)

Greater

c)

Less

d)

Impossible to say

31.

According to Willebord Snell, light passing from air to glass will cause the light to

a)

maintain its original speed

b)

accelerate while it is in glass

c)

increase its speed

d)

reduce its speed

32.

what is diffraction

a)

is a soild liquid gass

b)

is a beam of light that is spread out and passes through an object

c)

a beam of light

33.

A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects

a)

decrease

b)

increase

c)

remain the same

34.
This image is representing what wave interaction?
a)
Refraction
b)
Diffraction
c)
Reflection
d)
Interference
35.

What happens to the frequency of a wave as it passes through a gap？

a)

Increases

b)

Decreases

c)

No change

d)

None of above

36.
What is the main difference between refraction and diffraction?
a)
refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound
b)
refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle
37.

witch picture is diffraction

a)
b)
c)
d)
38.

Light is incident on an air-glass boundary at 60-degrees from the normal but refracts such that its refracted angle is only 35-degrees. Calculate the index of refraction of glass assuming air's index to be ni = 1.

a)

0.67

b)

1.00

c)

1.33

d)

1.50

39.

What would you call this?

a)

Refraction

b)

Diffraction

c)

Bends

d)

Reflection

40.

What type of interference is represented in this diagram?

a)

Constructive

b)

Destructive

41.

What type of interference is represented in the diagram?

a)

Constructive

b)

Destructive

42.

What's happening at A?

a)

Two crests are combining to create constructive interference.

b)

A crest and a trough are combining to create destructive interference.

c)

Two crests are combining to create destructive interference.

d)

A crest and trough are combining to create constructive interference.

43.

What is happening at B?

a)

Two crests are combining to create constructive interference.

b)

A crest and a trough are combining to create destructive interference.

c)

Two crests are combining to create destructive interference.

d)

A crest and a trough are combining to create constructive interference.

44.

What type of interference do noise cancelling headphones use?

a)

Constructive Interference

b)

Destructive Interference

45.

Sound waves in musical instruments or tubes create standing waves that enhance which type of interference to make louder sounds?

a)

Constructive

b)

Destructive

46.

Through which material does sound travel slowest?

a)

Water

b)

Paper

c)

Aluminum

d)

Air

e)

None of the above

47.

When a compression interferes with another compression, what occurs?

a)

They counteract and the wave stops.

b)

They combine to create a larger compression.

c)

They combine to create a rarefaction.

d)

None of the above.

48.

What will be the result after these two waves overlap?

a)

A taller wave

b)

A shorter wave

c)

A wave with no amplitude

d)

3 waves

49.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
50.
The angle produced as a source of light bounces off a reflecting surface is called ______.
a)
angle of crookedness
b)
angle of reflection
c)
angle of incidence
d)
angle of bounce
51.
MCQ 02
Why can you see most objects?
a)
A. they emit light
b)
B. light refracts through them
c)
C. light reflects off them
d)
D. they absorb light
52.
MCQ 011
According to the laws of reflection, if i = angle of incidence and r = angle of reflection,
a)
A. i =  r
b)
B. i >  r
c)
C. r >  i
d)
D. i is not equal to r
53.

The picture shows which type of reflection?

a)

Specular

b)

X-ray

c)

Diffuse

d)

Normal

54.

The ray of light that strikes a mirror

a)

Reflected Ray

b)

Incidence Ray

c)

Angle of Incidence

d)

Angle of Reflection

55.

The ray that bounces off the mirror.

a)

Angle of Reflection

b)

Incidience Ray

c)

Reflected Ray

d)

Angle of Reflection

56.

The picture shows which type of reflection?

a)

Diffuse

b)

X-ray

c)

Normal

d)

Specular

57.

If the angle of incidence in the diagram is 80°, the angle of reflection will be:

a)

10°

b)

100°

c)

90°

d)

80°

58.

True or False: This diagram shows the correct position of the mirrors so that the light hits the target

a)

True

b)

False

59.

Light always travels in a

a)

straight line

b)

wavy line

c)

curved line

d)

zig-zag line

60.

This diagram shows...

a)

specular reflection

b)

diffuse reflection

c)

total internal reflection

d)

refraction

61.

When a sound wave enters a more dense medium it will...

a)

slow down

b)

speed up

c)

not change speed

62.

Waves can transfer...

a)

energy

b)

matter

c)

information

63.

Sound waves can travel through a vacuum because they don't require particles.

a)

True

b)

False

64.

What type of wave is pictured?

a)

Transverse wave

b)

Longitudinal wave

c)

Wave, what wave?

d)

Slinky wave

65.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
66.

The distance between any two crests (peaks) or troughs.

a)

Frequency

b)

Amplitude

c)

Wavelength

d)

Transverse

67.

The number of times the wavelength occurs in one second, measured in units called hertz.

a)

Amplitude

b)

Wavelength

c)

Medium

d)

Frequency

68.
A stretched spring attached to two fixed points is compressed on one end and released, as shown in the picture. The resulting wave travels back and forth between the two fixed ends of the spring until it comes to a stop.  This mechanical wave is an example of a
a)
longitudinal wave
b)
transverse wave
c)
superpositioned wave
d)
refracted wave
69.
A sound wave moving through the air is what kind of wave?
a)
a Longitudinal
b)
water wave
c)
a transverse wave
d)
hand wave
70.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
71.
What are the parts of a longitudinal wave?
a)
Compressions and rarefactions
b)
Crests and troughs
c)
Compressions and crests
d)
Rarefactions and troughs
72.
What are the parts of a transverse wave?
a)
Compressions and rarefactions
b)
Crests and troughs
c)
Compressions and crests
d)
Rarefactions and troughs
73.

You can't hear sounds in outer space because there is no

a)

medium

b)

light

c)

energy

d)

heat

74.
Which part of the wave is shown at letter E?
a)
trough
b)
crest
c)
resting point
d)
amplitude
75.
In what type of wave does the medium move perpendicular to the movement of the wave?
a)
Transverse
b)
Longitudinal
c)
Electromagnetic
d)
Radio
76.
The number of wavelengths that pass a point each second
a)
frequency
b)
wavelength
c)
pitch
d)
amplitude
77.
How high or low a sound is; depends on the frequency (greater frequency= higher pitch)
a)
pitch
b)
frequency
c)
sound
d)
medium
78.
A reflected sound wave
a)
frequency
b)
pitch
c)
echo
d)
rarefaction
79.
You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?
a)
sound waves reflecting off smooth, flat surfaces throughout the house
b)
sound waves moving around the large rooms
c)
sound waves moving slowly through air
d)
sound waves refracting around corners in the empty rooms
80.
Cletus wants to make ear protectors for people who work around loud jet engines at Hartsfield Airport in Atlanta. Which of the following materials should he experiment with for the best results?
a)
a material that produces sound
b)
a material that absorbs sound
c)
a material that transmits sound
d)
a material that amplifies sound
81.
Bending of waves around an object (such as through a doorway)
a)
sound
b)
diffract
c)
pitch
d)
volume
82.
How high or low a sound is; depends on the frequency (greater frequency= higher pitch)
a)
pitch
b)
frequency
c)
sound
d)
medium
83.
What is a pitch?
a)
highness or lowness of a sound
b)
the intensity of a vibration
c)
the amplitude of the sound wave
d)
volume of sound
84.

Bats use ________ to locate mosquitoes in the air.

a)

solar

b)

ecology

c)

echolocation

d)

refraction

85.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
86.
What is B?
a)
crest
b)
trough
c)
compression
d)
rarefaction
87.
Why is the school library covered with carpet?
a)
So everyone can make a lot of noise
b)
to help absorb sounds to keep it quiet
c)
because it looks good
d)
to help absorb sounds so it can stay noisy
88.

A transverse wave is traveling through an unknown medium as shown in the diagram. How are the particles of the medium vibrating?

a)

parallel to the y-axis

b)

parallel to region R

c)

Parallel to the x-axis

d)

Parallel to Region Q

89.

This diagram shows two different ways to represent longitudinal waves.


Which letter corresponds to rarefaction in the waves?

a)

Z

b)

X

c)

W

d)

Y

90.

The diagram shows a research vessel using sonar to map the ocean floor.


Upon which basic behavior of sound waves does this technology depend?

a)

absorption

b)

compression

c)

reflection

d)

refraction

91.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
92.
a)
Reflection
b)
Refraction
93.
a)
Reflection
b)
Refraction
94.

How many components of white light?

a)

5

b)

6

c)

7

d)

8

95.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

Similar Resources on Wayground

Physical Science Physics Semester Review

99 questions

Physical Science Physics Semester Review

quiz

Worksheet

•

8th - 9th Grade

Định luật ohm cho toàn mạch

91 questions

Định luật ohm cho toàn mạch

quiz

Worksheet

•

11th Grade

Mario Kart Racing! 8.6A&C STAAR Review

90 questions

Mario Kart Racing! 8.6A&C STAAR Review

quiz

Worksheet

•

8th Grade

Simple Machines, Work & Power

100 questions

Simple Machines, Work & Power

quiz

Worksheet

•

10th Grade

Ôn tập giữa kì 11 - BT

91 questions

Ôn tập giữa kì 11 - BT

quiz

Worksheet

•

10th Grade

second Periodical Test review

100 questions

second Periodical Test review

quiz

Worksheet

•

10th Grade

IIT-JEE & NEET LEVEL-3 (9-T)

100 questions

IIT-JEE & NEET LEVEL-3 (9-T)

quiz

Worksheet

•

9th Grade

IIT-JEE & NEET LEVEL - 15 (8-0)

100 questions

IIT-JEE & NEET LEVEL - 15 (8-0)

quiz

Worksheet

•

8th Grade