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Light

Total questions: 100

Worksheet time: 50mins

Name
Class
Date
1.
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.
2.

Which of the following is the best example of an object absorbing light?

a)

A black sweater in the sun.

b)

A clean window in the sun.

c)

A curved mirror in the sun.

d)

A long shadow in the sun.

3.
Light is a kind of.....
a)
reflection
b)
energy
c)
heat
d)
matter
4.
Which of these describes how light travels through an empty space?
a)
It travels straight but may change direction to avoid objects.
b)
It changes direction often even if there are no objects. 
c)
It comes to a stop after it travels a certain distance. 
d)
It travels in a straight line without stopping. 
5.
What surface best reflects light?
a)
dull
b)
shiny
c)
clear
d)
black
6.

Which reflect light

a)

Cat

b)

Potato

c)

Mirror

d)

Moon

e)

empty space

7.

Which object refracted the laser beam?

a)

Silver locket

b)

Picture frame

c)

Glass marble

d)

Notebook

8.

Which of the following is demonstrated when light bounces off mirrors or shiny surfaces?

a)

Scattering

b)

Refraction

c)

Absorption

d)

Reflection

9.

Which of these provides the best explanation for why the pencil appears broken?

a)

The pencil absorbs the light rays that hit it.

b)

Water reflects light rays away from the pencil.

c)

Light rays are bent by the water in the glass.

d)

The surface of the water reflects the light rays.

10.

The two kinds of reflection are:

a)

transparent and translucent.

b)

opaque and translucent.

c)

regular and diffuse.

11.

What type of surface best reflects light?

a)

Dull

b)

Shiny

c)

Clear

d)

Black

12.

__________ objects blur light as it passes through them.

a)

Transparent

b)

Translucent

c)

Opaque

d)

Refraction

13.
What is the main source of light?
a)
Light bulbs
b)
Candles
c)
Sun
d)
Fluorescent lights
14.

When an object moves closer to a light source, its shadow...

a)

Gets smaller

b)

Gets bigger

c)

Changes shape

d)

Stays the same size

15.
The ray of light that strikes a reflecting surface is called ________.
a)
incident ray
b)
reflected ray
c)
normal ray
d)
none of the above
16.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
17.

Which light source causes shadows in the outdoor environment ?

a)

The sun

b)

The light bulb

c)

The house

d)

The school

18.

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

19.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

20.

These are all colours of spectrum except

a)

indigo

b)

blue

c)

purple

d)

green

21.

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.

22.

As you look at a rainbow, the colors go from top to bottom in what order?

a)

ROYGBIV

b)

VIBGYOR

c)

GYORVIB

d)

pretty to beautiful

23.

Latha is observing her image in a plane mirror. The distance between the mirror and her image is 6 m. If she moves 2m towards the mirror then the distance between latha and her image will be

a)

8 m

b)

4 m

c)

10 m

d)

5 m

24.

If you are standing 2m away from a plane mirror the distance between you and your image are

a)

2m

b)

4m

c)

6m

d)

8m

25.

Angle between incident and reflected ray i.e. angle AOB is

a)

30 degree

b)

40 degree

c)

120 degree

d)

180 degree

26.

Images that can't be captured on a screen are called

a)

Real image

b)

Virtual image

c)

Proper image

d)

Imaginary image

27.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
28.
If light strikes a mirror at a 50⁰ angle, what angle will it come off of the mirror?
a)
50⁰
b)
70⁰
c)
45⁰
d)
30⁰
29.

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

a)

A

b)

B

c)

C

d)

D

30.

What causes the light to refract as it passes from air to water?

a)

a change in temperature of the light

b)

a change in illumination of the light

c)

a change in speed of the light

d)

a change in brightness of the light

31.

What does light travel fastest in?

a)

solid

b)

liqid

c)

gas

d)

vacuum

32.

What does light travel slowest in?

a)

solid

b)

liqid

c)

gas

d)

vacuum

33.

This image is an example of...

a)

reflection

b)

refraction

c)

absorption

34.

This image is an example of...

a)

reflection

b)

refraction

c)

absorption

35.

Which letter is an example of reflection?

a)

A

b)

B

c)

C

36.

Which letter is an example of absorption?

a)

A

b)

B

c)

C

37.

Which letter is an example of refraction?

a)

A

b)

B

c)

C

38.

What is happening to the red light?

a)

reflected

b)

absorbed

c)

refracted

39.

What is happening to every color but red?

a)

reflected

b)

absorbed

c)

refracted

40.

Which answer choice is light turning into heat?

a)

refraction

b)

reflection

c)

absorption

41.

What happens to light as it passes from air to the window?

a)

Light changes speed but not direction

b)

all light is reflected

c)

all light passes through

d)

light changes speed and direction

42.
A cut piece of clear glass or plastic in the form of a triangle or other geometric shape.
a)
Person
b)
Prison
c)
Prism
d)
Preacher
43.
Band of color in a rainbow, or from a light passing through a prism.
a)
Spectrum
b)
Space
c)
Prism
d)
Refraction
44.
The term for any wave that hits a surface and bounces off
a)
Transparent
b)
Translucent
c)
Refraction
d)
Reflection
45.
What colors are in the rainbow?
a)
Red,orange,yellow,green,blue,indigo,purple
b)
Red,orange,yellow,green,blue,purple
c)
red,orange,orange,yellow,blue,purple
d)
red,orange,yellow,green,blue,blue,purple
46.
Rainbows are often seen
a)
after a rainstorm
b)
before a rainstorm
c)
after the sun sets at night
d)
before a storm
47.
Rainbows are produced when
a)
light exits many raindrops at different angles
b)
the sun causes a rainstorm
c)
the spectrum causes a rainstorm
d)
the sun comes out after a storm
48.
What color is NOT in a rainbow
a)
yellow
b)
indigo
c)
orange
d)
pink
49.
The moon is a source of light.
a)
True
b)
False
50.
Allows little to no light through.
a)
Transparent
b)
Translucent
c)
Opal
d)
Opaque
51.

Which is a transparent object

a)

glass

b)

copper

c)

iron

d)

steel

52.

Shadows are shortest at this time of day:

a)

morning

b)

noon

c)

afternoon

d)

evening

53.

If the sun is setting in the western part of the sky, in which direction will we find the shadow of an object?

a)

north

b)

south

c)

east

d)

west

54.

Which picture shows the shadow of a pole at noon?

a)
b)
c)
d)
55.

Why translucent materials can form a shadow but it's not as dark as opaque materials?

a)

Because they let most light to pass through it

b)

Because they let some light and block some light to pass through it

c)

Because they block all of the light to pass through it

56.

Why opaque materials can form a dark shadow?

a)

Because they let most light to pass through it

b)

Because they let some light and block some light to pass through it

c)

Because they block all of the light to pass through it

57.

When an object moves closer to a light source, its shadow...

a)

Gets smaller

b)

Gets bigger

c)

Changes shape

d)

Stays the same size

58.

Anushka put some tea into four cups made up of paper, glass, metal & porcelain. Which cups will allow her to see the level of tea clearly

a)

paper cup

b)

metal cup

c)

glass

d)

porcelain cup

59.

There is light on the Earth even on a dark, cloudy day. This is because clouds are:

a)

Opaque

b)

Transparent

c)

Translucent

d)

Luminous

60.

Which of the following does not have light of its own?

a)

a torch

b)

a lamp

c)

the moon

d)

the sun

61.

Fire fly is a

a)

Non-living luminous body

b)

Plant body

c)

Living luminous body

d)

Heavenly body

62.

Light travels

a)

around corners

b)

in a straight line (transverse waves)

c)

in loops, like a slinky (longitudinal waves)

63.

Opaque objects allow no light through. This is an example of....?

a)

Refraction

b)

Transmission

c)

Reflection

d)

Absorption

64.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
65.

Light travels through an object during

a)

absorption

b)

reflection

c)

transmission

d)

diffraction

66.

What is the earth's primary source of light energy?

a)

moon

b)

sun

c)

waves

d)

fire

67.
A cut piece of clear glass or plastic in the form of a triangle or other geometric shape.
a)
Person
b)
Prison
c)
Prism
d)
Preacher
68.
When light strikes an object with a rough surface, photons bounce off at random angles.
a)
Occer
b)
Scope
c)
Scattering
d)
Scattegories
69.
Transfer of energy when a wave disappears into a surface
a)
Transparent
b)
Refraction
c)
Reflection
d)
Absorption
70.
smooth, shiny surfaces
a)
reflect
b)
refract
c)
absorb
71.
sunglasses and tinted windows
a)
refraction
b)
absorption
c)
reflection
72.
rainbow
a)
light is reflected
b)
light is refracted
c)
light is absorbed
73.
What is the main source of light?
a)
Light bulbs
b)
Candles
c)
Sun
d)
Fluorescent lights
74.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
75.
What is the correct order of the colors of the rainbow?
a)
Red, orange, yellow, green, blue, indigo, violet
b)
red, orange, yellow, blue, green, indigo, violet
c)
orange, yellow, red, blue, purple, indigo
d)
red, orange, yellow, green, indigo
76.

Caleb is sitting near the window on a sunny day. When he closes the curtain, the room becomes darker. What property of the curtain allows it to make the room darker?

a)

The curtain absorbs light.

b)

The curtain is brightly colored.

c)

The curtain folds easily.

d)

The curtain is rectangular shape.

77.

At what point is the laser being reflected?

a)

A

b)

B

c)

C

d)

D

78.

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

a)
b)
c)
d)
79.

Which of the following is the best example of an object absorbing light?

a)

A black sweater in the sun.

b)

A clean window in the sun.

c)

A curved mirror in the sun.

d)

A long shadow in the sun.

80.

Light rays from any light source travel outward in all directions along a straight path until they hit something. which of the following best represents what occurs when light rays hit a glass of water?

a)

The light rays will pass straight through from air to water.

b)

The water absorbs the light, and it will no longer be seen.

c)

The light rays will bend at the boundary of air and water.

d)

The surface of the water will reflect the light off the water.

81.

Which illustration best shows light being refracted?

a)
b)
c)
d)
82.

Which object refracted the laser beam?

a)

Silver locket

b)

Picture frame

c)

Glass marble

d)

Notebook

83.

What makes it possible to see an object when looking through a periscope?

a)

It contains mirrors that reflect the object.

b)

It magnifies small objects so they can be seen.

c)

It absorbs the light rays passing through it.

d)

It separates the light into different colors.

84.

Our eyes perceive colors because of differences in which of the following properties of light?

a)

Intensity

b)

Wavelength

c)

Angle

d)

Source

85.

Adrian is observing a piece of white paper. His eye perceives the paper to be white because his eye is receiving what kind of light?

a)

Light in all the colors of the visible spectrum.

b)

Light mostly at the ultraviolet end of the spectrum.

c)

Light mostly at the infrared end of the spectrum.

d)

Light the paper produces when heated by the Sun.

86.

A combination of all the wavelengths with in the visible light portion of the electromagnetic spectrum will result in which of the following colors?

a)

White

b)

Red

c)

Violet

d)

Blue

87.

why do we see flashes before we hear the sounds?

a)

light travels faster than sound

b)

light travels slower than sound

88.

Which is translucent?

a)

x

b)

y

c)

z

89.

Which is opaque?

a)

x

b)

y

c)

z

90.

1. The diagram shows a ray of light from a fly to a fish. The fish can see the fly.

What happens to the direction of the ray of light as it enters the water?

a)

A) It bends towards the normal.

b)

B) It is reflected deeper into the water.

c)

C) It bends away from the normal.

d)

D) It bends down into a less dense material.

91.

What happens to the speed of the ray as it enters the water?

a)

increases

b)

decreases

92.

Which colours are reflected by Man's trousers on the left side of the diagram?

a)

All colours

b)

Red

93.

Which colours are reflected by the body on the left side of the diagram?

a)

all colours

b)

none

94.

On the right side, which colour is reflected by the trouser?

a)

All colours

b)

none

c)

only red

95.

Which colour is reflected by the hat on the right side?

a)

none

b)

blue

c)

all colours

96.

How is a translucent material different from a transparent material?

a)

A translucent material transmits light.

b)

A translucent material absorbs all light.

c)

A translucent material absorbs some light and the rest is reflected.

d)

A translucent material scatters light as it passes through.

97.

A student puts a red filter in a beam of white light.

(a) What happens to the light that hits the filter?

a)

Red light is transmitted and all the other colours are absorbed.

b)

Red light is absorbed and all the other colours are transmitted.

c)

White light is transmitted and red light is absorbed.

d)

Red light is reflected and all the other colours are absorbed.

98.

What color does a red object appear when viewed through a red filter?

a)

yellow

b)

red

c)

green

d)

blue

99.

What color does a yellow object appear when viewed through a red filter?

a)

yellow

b)

red

c)

blue

d)

green

100.

What color does a blue object appear when viewed through a red filter?

a)

black

b)

green

c)

blue

d)

red

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