wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

light year 8

Total questions: 129

Worksheet time: 1hrs 25mins

Name
Class
Date
1.
Sound moves in a _________.
a)
Transverse wave
b)
Longitudinal wave
2.

The height of a sound wave is related to its...

a)

Amplitude (Loudness)

b)

Pace (Speed)

c)

Key

d)

Tone

3.

Sound is caused by:

a)

Waves

b)

Vibrations

c)

Heat

d)

Air

4.

A loud sound is produced by waves with...

a)

a high pitch.

b)

a high frequency.

c)

a large amplitude.

d)

a small amplitude.

5.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
6.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
7.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
8.

In the diagram, which letter represents the angle of incidence?

a)

A

b)

B

c)

C

d)

D

9.

Which term is given to the change of direction of light rays when they passes into a more dense or less dense medium [such as a solid, liquid or gas]?

a)

Reflection

b)

Refraction

c)

Dispersion

10.
What property of light makes this pencil appear to be bent or broken?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
11.

A material that allows light to pass through it is described as...

a)

opaque.

b)

translucent.

c)

transparent.

d)

prism.

12.

When light passes from air to water, what happens to the speed of the light?

a)

It speeds up

b)

It slows down

c)

It stays the same

13.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
14.
What does refraction mean?
a)
bending light
b)
bouncing light
15.
What is this a picture of?
a)
reflection
b)
refraction
16.

Reflection is to bouncing as refraction is to:

a)

bending.

b)

breaking.

c)

dissipating.

d)

halting.

17.

Which diagram correctly describes the critical angle c for air-water surface?

a)

A

b)

B

c)

C

d)

D

18.

Why is the component of colour in a rainbow can be seen when light passes through a glass prism?

a)

phenomena of scattering of light

b)

phenomena of dispersion of light

c)

phenomena of reflection of light

d)

phenomena of diffraction of light

19.

How many components of white light?

a)

5

b)

6

c)

7

d)

8

20.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

21.

These are all colours of spectrum except

a)

indigo

b)

blue

c)

purple

d)

green

22.

Why is red light is at the top whileviolet at the bottom of the spectrum?

a)

Violet light has the medium speed so it is refracted the least.

b)

Violet light has the highest speed so it is refracted the least

c)

Red light has the slowest speed so it is refracted the least

d)

Red light has the highest speed so it is refracted the least.

23.

When white light enters a prism, it gets split into its constituent colours. This is due to

a)

different refractive index for different wavelength of each colour

b)

each colours has same velocity in the prism.

c)

prism material have high density.

d)

Scattering of light

24.

When white light enters a glass prism from air, the angle of deviation is least for

a)

blue light

b)

yellow light

c)

red light

d)

violet light

25.

What is called the separation of white light into different colors as it passes through prism?

a)

color separation

b)

dispersion

c)

reflection

d)

refraction

26.

Which of the following orders of visible light colors shows increasing wavelength?

a)

red, orange, yellow, green, blue, indigo, violet

b)

red, yellow, green, orange, violet, blue, indigo

c)

violet, indigo, blue, green, yellow, orange, red

d)

violet, blue, green, orange, red, indigo, yellow

27.
How long does it take Earth to complete one revolution around the Sun?
a)
24 hours
b)
one week
c)
one month
d)
one year
28.
Earth completes one full ___________ on its axis every 24 hours.
a)
rotation
b)
revolution
c)
resolution
d)
reservation 
29.
Which planet is between Venus and Mars?
a)
Earth
b)
Neptune
c)
Mercury
d)
Jupiter
30.
Which planet is between Venus and Mars?
a)
Earth
b)
Neptune
c)
Mercury
d)
Jupiter
31.

What is the dark inner portion of the shadow cone?

a)

umbra

b)

penumbra

c)

corona

32.

The lighter outer portion of the shadow cone

a)

penumbral

b)

umbra

c)

annular

33.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
34.

Term applied to materials that allow light to pass through them in straight lines.

a)

transparent

b)

opaque

c)

ray

d)

shadow

e)

penumbra

35.

Term applied to materials that absorb light without remission, and consequently do not allow light through them.

a)

transparent

b)

opaque

c)

ray

d)

shadow

e)

penumbra

36.

A thin beam of light.

a)

umbra

b)

opaque

c)

ray

d)

shadow

e)

penumbra

37.

A shaded region that results when light falls on an object and thus cannot reach into the region on the far side of the object.

a)

umbra

b)

opaque

c)

ray

d)

shadow

e)

penumbra

38.

The darker part of a shadow where all light is blocked.

a)

umbra

b)

opaque

c)

ray

d)

shadow

e)

penumbra

39.

A partial shadow that appears where light from part of the source is blocked and light from another part of the source is blocked and light from another part of the source is not blocked.

a)

umbra

b)

opaque

c)

ray

d)

shadow

e)

penumbra

40.

Which wave behavior explains how waves are able to change direction based on the water's depth?

a)

Refraction

b)

Diffraction

c)

Reflection

d)

Interference

41.

Which wave behavior explains how animals are able to use sound in order to "see" in the dark?

a)

Refraction

b)

Diffraction

c)

Reflection

d)

Interference

42.

Two short tubes are set up in front of a board as shown in the picture. You would be able to hear the watch ticking because ..

a)

reverberation

b)

echo

c)

law of reflection

d)

transmission

43.
The speed of a sound wave depends on
a)
the frequency
b)
the medium
c)
both air temperature and medium
d)
the air temperature
44.

In which of the following media can sound travel through?

a)

Glass of water

b)

Balloon full of air

c)

Iron bar

d)

Vacuum

45.

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.

46.
the loudness of a sound
a)
vibration
b)
pitch
c)
volume
d)
frequency
47.

lights travels in a ------------ line

a)

in any own way

b)

straight

c)

curved

d)

circular

48.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
49.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
50.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
51.
If you are wearing a yellow shirt, what is true of the light that strikes it?
a)
Yellow is absorbed; everything else is reflected
b)
Yellow is reflected; everything else is absorbed
c)
All colors are reflected
d)
All colors are absorbed
52.
If you are wearing a black sweatshirt, what happens to most of the light that strikes the sweatshirt 
a)
It is absorbed
b)
It is reflected
c)
It is transmitted
53.
When a ray of light moves from the air to water it bends due to a change in
a)
Velocity
b)
Direction
c)
Speed
54.
Reflection is
a)
Light bending
b)
Light bouncing
55.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
56.
What occurs when an object takes in a light wave?
a)
reflection
b)
refraction
c)
absorption
d)
transparent
57.

Light travels in straight lines until reflected by another object. Which illustration best shows the light being reflected?

a)
b)
c)
d)
58.

Transmit means___________

a)

light goes through and bends

b)

light bounces back

c)

light gets taken in

d)

light goes straight through

59.

Absorb means______.

a)

light bounces back

b)

light goes through and bends

c)

light gets taken in

d)

light goes straight through

60.

When looking through a window, light is _______.

a)

reflected

b)

transmitted

c)

refracted

d)

absorbed

61.
A plane mirror produces a/an 
a)
a small, real image
b)
a large, real image
c)
 a small, virtual image
d)
a same sized, virtual image
62.
Which of the following explains why an apple looks red?
a)
reflects red and absorbs all other colors
b)
absorbs red and reflect all other colors
c)
reflects all colors
63.
What property of light is represented by the picture?
a)
reflection
b)
diffraction
c)
refraction
d)
absorption
64.
Which is translucent?
a)
tissue paper
b)
air
c)
wood
d)
clear plastic
65.
What is most likely to happen to light that hits an opaque object?
a)
All of the light passes through the object.
b)
None of the light passes through the object.
c)
Most of the light disappears.
d)
Some of the light passes through the object.
66.

A substance through which a wave travels.

a)
Wavelength
b)
Opaque
c)
Frequency
d)
Medium
67.
The three primary colors of light are
a)
Red, Blue, Yellow
b)
Pink, Green, Blue
c)
Violet, Green, Red
d)
Blue, Green, Red
68.

Which of the following is a source of light

a)

Eye

b)

Mirror

c)

Fire

d)

the moon

69.

When light bounces of a mirror,it is

a)

Reflected

b)

Corrected

c)

Absorbed

d)

Refracted

70.

Latif wakes up one morning and sees that it is foggy outside.Whcih term best describe the fog he sees

a)

Opaque

b)

Reflective

c)

Transparent

d)

Translucent

71.

What happen to the light as it passess from air to the transparent window

a)

Light changes speed but not direction

b)

All light is reflected

c)

Light changes speed and direction

d)

All light pass through

72.

Example of a luminous object

a)

Sun

b)

Moon

c)

Pencil

d)

Wall

73.
What three things may happen to light that strikes an object? 
a)
The light may be reflected, transmitted or absorbed.
b)
The light may be reflected and refracted.
c)
The light may be absorbed and transmitted.
74.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
75.
Objects that ABSORB all colors of light will appear _______.
a)
white
b)
black
c)
multi-colored
d)
gray
76.
Objects that reflect ALL colors will appear _____?
a)
Black
b)
White
c)
Gray
d)
Multi-colored
77.
If you are using a green color filter, what color will you only see?
a)
blue
b)
green
c)
white
d)
red
78.
If you are using a red color filter, blue objects will appear what color?
a)
purple
b)
blue
c)
red
d)
black
79.
What percentage of colors makes white light?
a)
100% of red, green, and blue
b)
100% of red, blue, and yellow
c)
0% of red, green, and blue
d)
50% of all colors
80.

These are all colours of spectrum except

a)

indigo

b)

blue

c)

purple

d)

green

81.
A material that absorbs or reflects the light that strikes it is ____________.
a)
transparent
b)
translucent
c)
opaque
82.

If you see a green leaf on a tree, that means...

a)

Green is the color being reflected off the leaf.

b)

Green is the color being absorbed by the leaf.

c)

All the colors are being reflected off the leaf.

d)

All the colors are being absorbed by the leaf.

83.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
84.

In the diagram, which letter represents the angle of incidence?

a)

A

b)

B

c)

C

d)

D

85.

Which diagram represents specular reflection?

a)

A

b)

B

86.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
87.
........... – the angle between the normal and the reflected ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
88.
........... – the angle between the normal and the incident ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
89.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
90.

The diagram below represents a light ray reflecting from a plane mirror. The angle of reflection for this light rat is

a)

20 degrees

b)

70 degrees

c)

140 degrees

d)

160 degrees

91.

When a ray of light strikes a mirror perpendicular to its surface, the angle of reflection is

a)

0 degrees

b)

45 degrees

c)

60 degrees

d)

90 degrees

92.

The diagram below represents a light ray being reflected from a plane mirror. From the data provided in the diagram, what is the angle of reflection?

a)

10 degrees

b)

40 degrees

c)

50 degrees

d)

100 degrees

93.

Light refracts when:

a)

It changes speed

b)

It changes from a particle to a wave

c)

Its density changes

d)

It encounters a solid object

94.
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
95.
Swimming pools and the ocean look shallower than they really are due to:
a)
reflection 
b)
dispersion
c)
refraction
d)
total internal reflection
96.
Glass has a _____________ index of refraction than air.
a)
Equal
b)
Greater
c)
Less
d)
Impossible to say
97.

When light passes at an angle to the normal from one medium into another in which its speed is higher

a)

it is bent toward the normal.

b)

it always lies along the normal.

c)

it is unaffected.

d)

it is bent away from the normal.

98.

When light passes at an angle to the normal from one medium into another in which its speed is lower

a)

it is bent towards the normal.

b)

it always lies along the normal.

c)

it is unaffected.

d)

it is bent away from the normal.

99.

Based on the image, as light passes from medium 1 to medium 2

a)

light speeds up and bends towards the normal

b)

light speeds up and bends away from the normal

c)

light slows down and bends towards the normal

d)

light slows down and bends away from the normal

100.

Which color of light is bent most during refraction by a prism?

a)
red
b)
yellow
c)
green
d)
violet
101.
a)
Reflection
b)
Refraction
102.

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

a)

always travels in a straight line.

b)

slows down when it passes through water.

c)

makes the water in the glass evaporate.

d)

reflects the pencil on the water's surface.

103.

Why is the component of colour in a rainbow can be seen when light passes through a glass prism?

a)

phenomena of scattering of light

b)

phenomena of dispersion of light

c)

phenomena of reflection of light

d)

phenomena of diffraction of light

104.

Why is the spectrum of light seperated into its components of colour when white light is directed to a prism?

a)

The different colours in the white light bend away from the normal line at different angles when entering prism

b)

The different colours in the white light bend towards the normal line at different angles when entering prism

c)

The different colours in the white light bend away from the normal at same speed to each other when entering prism

d)

The different colours in the white light bend towards the normal at same speed to each other when entering prism

105.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

106.

Why is red light is at the top whileviolet at the bottom of the spectrum?

a)

Violet light has the medium speed so it is refracted the least.

b)

Violet light has the highest speed so it is refracted the least

c)

Red light has the slowest speed so it is refracted the least

d)

Red light has the highest speed so it is refracted the least.

107.

Why is the spectrum of light separated into its components of color when white light is directed to a prism?

a)

Because light reflects off the prism's surface

b)

The incident white light refracts and separates into its constituent colors

c)

The white light is absorbed by the prism, separating its colors

d)

The light speeds up as it moves from air into the denser plastic material

108.

Rainbow is formed due to

a)

Natural dispersion

b)

Sunlight passing through raindrops

c)

Refraction of light

d)

All of the above

109.

The dispersion of light is the separation of white light into the spectrum of light, namely red, orange, yellow, green,blue,indigo and violet.

a)

True

b)

False

110.

Violet light is refracted the most by a glass prism as the light travels the ................ through the glass prism.

a)

slowest

b)

fastest

111.

Red light is refracted the least by a glass prism because red light travels the ............ through the glass prism

a)

slowest

b)

fastest

112.

The substance in the sky which is involved in the formation of rainbow

a)

Air particle

b)

Dust

c)

Raindrop

d)

soot

113.

Which of the following is NOT a source of light?

a)

eyes

b)

lit candle

c)

sun

d)

firefly

114.

When is a rainbow mostly formed?

(Select all that apply)

a)

mostly after rainfall

b)

mostly after a bright rainy day

c)

mostly when its a foggy day

d)

mostly when it is a bright sunny day

115.

Which processes are included when a rainbow forms?

a)

Reflection

b)

Refraction

c)

Reflection, dispersion and refraction

d)

Refraction and Reflection

116.

After rainfall, a rainbow forms, ALWAYS or SOMETIMES or NEVER, Why?

a)

Always, because the surface of the water droplet matters for the reflection, dispersion and refraction of the sun's white light.

b)

Sometimes, because the surface of the water droplet matters for the reflection, dispersion and refraction of the sun's white light.

c)

Never, because the surface of the water droplet matters for the reflection, dispersion and refraction of the sun's white light.

117.

WHICH COLOR HAS THE LONGEST WAVELENGTH?

a)

RED

b)

VIOLET

118.

WHICH COLOR HAS THE LOWEST FREQUENCY?

a)

VIOLET

b)

RED

119.

WHICH COLOR HAS THE SHORTEST WAVELENGTH?

a)

RED

b)

VIOLET

120.

Which of the following is NOT a primary color of light?

a)

Red

b)

Blue

c)

Yellow

d)

Green

121.

How does light behave when hitting this shirt?

a)

Yellow is absorbed; all other colors are reflected.

b)

Yellow is reflected; all other colors are absorbed.

c)

All colors are absorbed, but yellow is refracted.

d)

Yellow is scattered and all other colors are absorbed.

122.

Which color will transmit through the filter?

a)

Red only

b)

Blue and Violet

c)

Green

d)

All colors

123.

What colours is white light made from?

a)

Orange, Green, Pink, Magenta, Peach, Rose, Lemon

b)

Red, Orange Yellow, Green, Black, Indigo, Violet

c)

Red, Orange, Yellow, Green, Blue, Indigo, Violet

d)

Red, Orange, Yellow, Grey, Blue, Indigo, Violet

124.

How will this object appear when looking at it through a blue filter?

a)

Blue

b)

Green

c)

Black

d)

Orange

125.

Which color(s) does this filter transmit?

a)

No colors are transmitted.

b)

All colors but green

c)

Only green

126.

flat mirrors are called _______ mirrors

a)

plane

b)

concave

c)

convex

127.

When light energy bounces off surfaces and reflects is _______

a)

refraction

b)

electromagnetic spectrum

c)

reflection

d)

radiation

128.

True or False: Refraction is the bending of light

a)

False

b)

True

129.

When white light passes through a water droplet in the sky, each colour slows down by a slightly different amount and so the different colours travel through the air at slightly different speeds is called _______

a)

Displacement

b)

Refraction

c)

Dispersion

d)

reflection

Similar Resources on Wayground

Math Skills

126 questions

Math Skills

quiz

Worksheet

•

7th - 12th Grade

Driver's ed

129 questions

Driver's ed

quiz

Worksheet

•

8th Grade - Professio...

APS Semester Test Study Guide

129 questions

APS Semester Test Study Guide

quiz

Worksheet

•

8th Grade

1st and 3rd law

130 questions

1st and 3rd law

quiz

Worksheet

•

8th Grade