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Light

Total questions: 60

Worksheet time: 31mins

Name
Class
Date
1.
The bending of light when it moves through one kind of matter to another is.....
a)
absorption
b)
reflection
c)
refraction
d)
a rainbow
2.
The bouncing of light off an object is ....
a)
a mirror
b)
absorption
c)
reflection
d)
refraction
3.
Light is a kind of.....
a)
reflection
b)
energy
c)
heat
d)
matter
4.
What happens to light after it hits a mirror?
a)
It goes through the mirror and bend.
b)
It goes straight through the mirror.
c)
It goes around the mirror.
d)
It bounces off the mirror.
5.
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. 
6.

What does the pencil in this picture show about light?

a)

Light is refracted when it hits a curved object.

b)

Light is reflected when it hits a curved object.

c)

Light is refracted when it passes from air into water.

d)

Light is reflected when it passes from air into water.

7.
What surface best reflects light?
a)
dull
b)
shiny
c)
clear
d)
black
8.
What kind of path does light take?
a)
It travels in a straight line until it hits something or goes through it.
b)
It bounces off all objects.
c)
It curves around all objects.
d)
It goes through all objects.
9.
How is refraction different from reflection.
a)
Reflection is the bouncing of light off an object and refraction is the bending of light when it moves through one kind of matter to another.
b)
Reflections is the bending of light when it moves through one kind of matter to another and refraction is the bouncing of light off an object.
10.
What is light?
a)
Is all around us, and we need it to see.
b)
Is a force that we need.
11.
How does light travel/move?
a)
In ONE direction, VERY fast
b)
In ALL directions, VERY fast
12.
Light can pass through objects.
a)
TRUE
b)
FALSE
13.
Through which objects does light pass MORE?
a)
Transparent objects, like glass windows
b)
Opaque objects (not transparent), like a plant
14.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
15.
When light passes through things it ________. 
a)
BENDS
b)
STAYS in the SAME direction.
16.
___________ is when light BENDS or CHANGES direction.
a)
Reflection
b)
Refraction
17.
Refraction makes objects look different.
a)
TRUE
b)
FALSE
18.
A Magnifying glass uses refraction to make things look closer.
a)
TRUE
b)
FALSE
19.

How does the light travels?

a)

in parallel

b)

in a straight line

c)

on its own orbit

d)

on its own path

20.

Which of the following shows that light travels in a straight line?

a)
b)
c)
d)
21.

What is the factor that affects the clarity of a shadow?

a)

Type of the light source

b)

Size of light source

c)

Size of screen

d)

Type of material of the object

22.

In an experiment, the shadow was formed but not so clear. Which type of object do you think was used in this experiment?

a)

Coloured paper

b)

Manila card

c)

Wooden block

d)

A transparent plastic

23.

What conclusion can be made from this investigation?

a)

Light travels in parallel

b)

Light travels in a straight line

c)

Light cannot pass through and opaque object

d)

Light cannot bend

24.

There is no shadow formed on the screen. Why?

a)

The object is opaque

b)

The light source is too dim

c)

The object is transparent

d)

The object is translucent

25.

This investigation is carried out to show that

a)

light travels in a straight line

b)

light can be seen through the holes

c)

light penetrates a transparent object

d)

light travels in many ways

26.

There are two factors that affect the size of shadow. What are the factors? Tick the correct answers.

a)

Size of the screen

b)

Distance of object from the screen

c)

Distance of object from the light source

d)

Size of the light source

27.
Light travels
a)
around corners
b)
in a straight line
28.
mirror
a)
absorbs
b)
reflects 
c)
refracts
29.
smooth, shiny surfaces
a)
reflect
b)
refract
c)
absorb
30.
sunglasses and tinted windows
a)
refraction
b)
absorption
c)
reflection
31.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
32.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
33.
Blurs light as it passes through
a)
Transparent
b)
Translucent
c)
Opaque
d)
Refraction
34.
Allows most light through
a)
eflection
b)
Refraction
c)
Translucent
d)
Transparent
35.

which is a transparent object

a)

glass

b)

copper

c)

iron

d)

steel

36.

A material that allows light to pass through it.

a)

opaque

b)

translucent

c)

transparent

d)

prism

37.

To bend light waves.

a)

opaque

b)

refract

c)

reflect

d)

prism

38.

A form of energy we can see.

a)

heat

b)

electricity

c)

light

d)

sound

39.

Which statement is NOT true?

a)

light travels in a straight line

b)

light can reflect off a surface

c)

a lens is an object that refracts light

d)

light can come from only one source

40.
Which material is opaque?
a)
Brick
b)
Water
c)
Tissue Paper
d)
Glass
41.
What is the main source of light?
a)
Light bulbs
b)
Candles
c)
Sun
d)
Fluorescent lights
42.
Why does a straw look broken when you put it in a cup of water?
a)
It is being reflected.
b)
It is being refracted.
c)
It is broken.
d)
The colors are being separated.
43.
Which one is an example of light being reflected?
a)
Seeing yourself in a mirror
b)
Lighting a candle
44.
If you look at a yellow banana through a red filter, what color will the banana be?
a)
Red
b)
Yellow
c)
Blue
d)
Green
45.
If you are in a dark room, which source of light will appear the brightest to you?
a)
A candle on the table in front of you
b)
Car lights outside
c)
The lights next door
d)
A flashlight shining down the hallway
46.
What kind of surface will NOT have a clear reflection?
a)
Smooth lake
b)
Mirror
c)
Bumpy, rough surface
d)
Smooth surface
47.

Energy waves bouncing off the surface of an object and returns energy back to the source.

a)

Reflection

b)

Refraction

c)

Lens

48.

Lenses in glasses, binoculars, telescopes, etc will cause

a)

Rewind

b)

Reflection

c)

Refraction

d)

Reverse

49.

Refractions will cause the object to look

a)

the same

b)

smaller & straight

c)

larger & bent

d)

a different color

50.

Light is a type of energy that can be sensed with the

a)

ears

b)

eyes

c)

nose

d)

none of these

51.

Why does this tree make a shadow?

a)

It blocks light.

b)

It vibrates.

c)

It gives off heat.

52.

When you block the sun, you make a ____________________.

a)

a light

b)

a sound

c)

a shadow

53.

Which object would be a source of light?

a)

a ball

b)

c pencil

c)

a campfire

54.
What is the ability to do work?
a)
refraction
b)
energy
c)
opaque
d)
convexing
55.

An example of a natural light source is

a)

the moon

b)

a candle

c)

the sun

d)

a torch

56.

Light cannot go around...?

a)

corners

b)

bends

c)

a wall

d)

all of the above

57.
Mike wants to put a window over his bathtub. Which type of material should he pick to allow light and privacy?
a)
tranparent
b)
translucent
c)
opaque
d)
relective
58.

The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.

Why?

a)

Light travels in a straight line

b)

Light is refracted

c)

Light is reflected

d)

Light travels in two different mediums

59.

Tick the correct of TWO devices which use the principle of light reflection in our daily lives.

a)
b)
c)
d)
60.

When does the light is refracted?

a)

When light travels in a straight line

b)

When light is bounced

c)

When light travels in two different mediums

d)

When light cannot pass through an opaque object