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GIU G4 Light

Total questions: 102

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

A form of energy that travels in straight lines

a)

sound

b)

light

c)

kinetic

d)

atoms

2.

When light bounces off an object

a)

absorbs

b)

refracts

c)

reflects

3.

when light bends as it travels from one medium to another

a)

Absorbs

b)

Echos

c)

Reflects

d)

Refracts

4.

When light does not reflect or refracts it is taken in by an object

a)

Absorbs

b)

Reflect

c)

Refract

d)

opinion

5.

a form of matter that may or may not allow light to pass through it

a)

small

b)

medium

c)

soild

d)

gas

6.

a medium that allows ALL light to pass through

a)

transparent

b)

translucent

c)

opaque

d)

liquid

7.

a medium that allows SOME light to pass through

a)

transparent

b)

translucent

c)

opaque

d)

gas

8.

a medium that allows NO light to pass through

a)

transparent

b)

translucent

c)

opaque

d)

solid

9.

Refraction occurs best with

a)

lenses and water

b)

lenses

c)

water

d)

lenses and gas

10.

Reflection occurs best on:

a)

rough, bumpy surfaces

b)

flat, smooth surfaces

c)

opaque mediums

d)

wooden objects

11.

Absorption of light occurs best with:

a)

mirrors

b)

light surfaces

c)

medium surfaces

d)

dark surfaces

12.

What is NOT one of the 3 main types of mediums?

a)

Solid

b)

Liquid

c)

plastic

d)

Gas

13.

When light changes speed, its path is changed so that light rays are bent as they pass through. This is called:

a)

reflection

b)

refraction

c)

mirroring

d)

absorption

14.

Light bends as it passes through water

a)

True

b)

False

15.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
16.
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
17.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
18.
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
19.
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
20.
Reflection is
a)
Light bending
b)
Light bouncing
21.
Refraction is
a)
light bending 
b)
light bouncing
22.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
23.

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

24.
_______ is when light hits and object and it BOUNCES off.
a)
Reflection
b)
Refraction
25.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
26.

Lenses always________light.

a)

reflect

b)

refract

c)

transmit

d)

absorb

27.

When you look on the surface of a lake, the light is______.

a)

refracted

b)

transmitted

c)

absorbed

d)

reflected

28.

When you look through water, the light is_______.

a)

reflected

b)

refracted

c)

transmitted

d)

absorbed

29.

What is happening in this picture?

a)

the light is being refracted from mirror to mirror

b)

the light is being transmitted

c)

the light is being reflected off each mirror

d)

the light is being absorbed by each mirror

30.

What is a difference between reflection and refraction?

a)

In reflection the light goes through and in refraction the light does not go through

b)

In reflection the light does not go through, in refraction it does go through

c)

reflection means to bend and refraction means to bounce off of

d)

refraction means to stop and reflection means to go

31.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
32.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
33.
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
34.
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
35.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
36.
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
37.
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
38.
When a ray of light moves from the air to water it bends due to a change in
a)
Velocity
b)
Direction
c)
Speed
39.
Reflection is
a)
Light bending
b)
Light bouncing
40.
Refraction is
a)
light bending 
b)
light bouncing
41.
When light passess through this object, it is refracted off of one wall and reflected to another, the light is refracted again and as it leaves the object, it forms a rainbow. 
What is this object?
a)
Mirror
b)
Magnifying glass
c)
Prism
d)
Window
42.
Refraction may cause your image in water to look
a)
darker
b)
lighter
c)
smooth
d)
bent
43.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
44.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
45.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
46.
What causes the pencil to look broken when placed in water?
a)
Refraction
b)
Deflect
c)
Reflection
d)
Opaque
47.
Reflection is...
a)
A. light bouncing off a surface
b)
B. the bending of light
c)
C. the absorption of light
d)
D. light breaking into colors
48.
Light travels...
a)
A. in ovals
b)
B. in circles
c)
C. in squares
d)
D. in straight lines
49.
bouncing of a polished surface by a ray of light is called 
a)
reflecton
b)
dispertion
c)
human eye
d)
excretion
50.
What occurs when an object takes in a light wave?
a)
reflection
b)
refraction
c)
absorption
d)
transparent
51.

When light hits an opaque object it changes direction

and bounces off. This is called _________

a)

Refraction

b)

Reflection

52.

When light travels through two different materials it bends and changes

direction because the speed of light changes. This is called __________

a)

Reflection

b)

Refraction

53.

Objects that have very shiny, smooth surfaces reflect a lot of light and reflect perfect images.

Is the given statement true or false?

a)

True

b)

False

54.

A __________ is a three-dimensional piece of glass that bends

light and separates it into its seven different colours.

a)

Mirror

b)

Spectrum

c)

Prism

d)

Sheet

55.

The light separates into

seven different colours called the ________

a)

Rainbow

b)

Spectrum

c)

Thunder

d)

Lightning

56.

Light appears white or transparent, but it is actually

made up of several different colours.

Is the given statement true or false?

a)

True

b)

False

57.

When it is raining and the Sun is shining, it makes a __________

a)

raindrop

b)

prism

c)

dew

d)

rainbow

58.

The _________ is the coloured circle at the front of the eye.

a)

pupil

b)

iris

c)

lens

d)

retina

59.

The lens focuses the image onto the __________

a)

iris

b)

pupil

c)

retina

d)

lens

60.

The _________ is the hole in the centre of the iris. Light enters the eye through this hole.

a)

pupil

b)

optic nerve

c)

lens

d)

retina

61.
What is light?
a)
Is all around us, and we need it to see.
b)
Is a force that we need.
62.
Light is a KIND of ENERGY.
a)
True
b)
False
63.
All light has a SOURCE, or something it comes from. 
a)
True
b)
False
64.
Which are the two type of light sources?
a)
Artificial and Natural
b)
Natural and Invented
c)
Artificial and Not Artificial
d)
All of them
65.
Which of these are examples of NATURAL sources of light?
a)
Sun 
b)
Stars
c)
Lightning
d)
ALL of them
66.
Which of these are examples of ARTIFICIAL sources of light?
a)
Lightbulbs
b)
Neon signs
c)
Televisions
d)
ALL of them
67.
What does ARTIFICIAL mean?
a)
Made by humans
b)
Natural
68.
Which of these is our MAIN (most important) source of light?
a)
Lightbulbs
b)
The Sun
c)
Fire
d)
All of them
69.
How does light travel/move?
a)
In ONE direction, VERY fast
b)
In ALL directions, VERY fast
70.
What happens when light hits an object?
a)
Some of the light jumps in different directions
(bounces)
b)
Some of the light gets absorbed by the object.
c)
Some of the light bounces back to your eye
d)
ALL of them.
71.
_______ is when light hits and object and it BOUNCES off.
a)
Reflection
b)
Refraction
72.
Which objects REFLECT more light?
a)
Shiny objects
b)
Dull objects (not shiny)
73.
Light can pass through objects.
a)
TRUE
b)
FALSE
74.
Through which objects does light pass MORE?
a)
Transparent objects, like glass windows
b)
Opaque objects (not transparent), like a plant
75.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
76.
When light passes through things it ________. 
a)
BENDS
b)
STAYS in the SAME direction.
77.
___________ is when light BENDS or CHANGES direction.
a)
Reflection
b)
Refraction
78.
Refraction makes objects look different.
a)
TRUE
b)
FALSE
79.
Which of these objects use REFRACTION?
a)
Telescope
b)
Magnifying glass
c)
Microscope
d)
ALL of them
80.
A Magnifying glass uses refraction to make things look closer.
a)
TRUE
b)
FALSE
81.

An object that separates white light into bands of colored light is called a _______________.

a)

rainbow

b)

prism

c)

refraction

d)

opaque

82.

The range of waves that make up light is called the

a)

prism

b)

reflection

c)

refraction

d)

electromagnetic spectrum

83.

The bending of light as it passes from one material to another is called ___________________.

a)

reflection

b)

refraction

c)

transparent

d)

translucent

84.

Any wave that hits a surface and bounces off is called a ____________________.

a)

refraction

b)

concave

c)

prism

d)

reflection

85.

__________________ spreads out the reflected light rays.

a)

Convex

b)

Reflection

c)

Translucent

d)

Concave

86.

_______________ forces the reflected light rays together at a point.

a)

Concave

b)

Opaque

c)

Convex

d)

Refraction

87.

Which allows light to pass through easily, making it easy to see through?

a)

reflection

b)

opaque

c)

translucent

d)

transparent

88.

Which scatters light in all directions, making it harder to see through clearly?

a)

transparent

b)

opaque

c)

translucent

d)

concave

89.

Which means to block light completely, making it impossible to see through?

a)

transparent

b)

opaque

c)

translucent

d)

prism

90.

What causes matter to move and change?

a)

matter

b)

energy

c)

nature

d)

a source

91.

True or false. Light is a form of energy.

a)

true

b)

false

92.

True or false. Light travels in a straight line.

a)

true

b)

false

93.

Which is an example of a man made light?

a)

sun

b)

lightning

c)

flashlight

d)

firefly

94.

True or false. Fire can only be a man made source of light.

a)

true

b)

false

95.

The most important source of light comes from _____________.

a)

man

b)

the sun

c)

eletricity

d)

batteries

96.

Light from the sun is called _____________ energy.

a)

molecular

b)

random

c)

focused

d)

solar

97.

You can see the seven colors of the rainbow when light ____________ and _________________.

a)

stops and starts

b)

bends and reflects

c)

extinguishes and begins

d)

You can never see the seven colors of the rainbow.

98.

How many main colors of white light are there?

a)

three

b)

ten

c)

eight

d)

seven

99.

Which main color of white light is missing from the list of colors: red, orange, yellow, blue, indigo, and violet?

a)

gold

b)

green

c)

grape

d)

gray

100.

Which is an example of an opaque object?

a)

glass

b)

wax paper

c)

clear plastic

d)

tree

101.

Which is an example of a transparent object?

a)

clear plastic

b)

spoon

c)

wax paper

d)

curtain

102.

Which is an example of a translucent object?

a)

a person

b)

clear plastic

c)

dog

d)

wax paper

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