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GIU light Grade 4

Total questions: 112

Worksheet time: 1hrs 17mins

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.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
17.
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
18.
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
19.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
20.
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
21.
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
22.
When a ray of light moves from the air to water it bends due to a change in
a)
Velocity
b)
Direction
c)
Speed
23.
Reflection is
a)
Light bending
b)
Light bouncing
24.
Refraction is
a)
light bending 
b)
light bouncing
25.
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
26.
Refraction may cause your image in water to look
a)
darker
b)
lighter
c)
smooth
d)
bent
27.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
28.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
29.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
30.
What causes the pencil to look broken when placed in water?
a)
Refraction
b)
Deflect
c)
Reflection
d)
Opaque
31.
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
32.
Light travels...
a)
A. in ovals
b)
B. in circles
c)
C. in squares
d)
D. in straight lines
33.
bouncing of a polished surface by a ray of light is called 
a)
reflecton
b)
dispertion
c)
human eye
d)
excretion
34.
What occurs when an object takes in a light wave?
a)
reflection
b)
refraction
c)
absorption
d)
transparent
35.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
36.
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
37.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
38.
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
39.
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
40.
Reflection is
a)
Light bending
b)
Light bouncing
41.
Refraction is
a)
light bending 
b)
light bouncing
42.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
43.

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

44.
_______ is when light hits and object and it BOUNCES off.
a)
Reflection
b)
Refraction
45.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
46.

Lenses always________light.

a)

reflect

b)

refract

c)

transmit

d)

absorb

47.

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

a)

refracted

b)

transmitted

c)

absorbed

d)

reflected

48.

When you look through water, the light is_______.

a)

reflected

b)

refracted

c)

transmitted

d)

absorbed

49.

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

50.

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

51.
What does light do when it hits a smooth, flat surface?
a)
Reflect
b)
Refract
c)
Absorb
d)

Scatter

52.
Why does the pencil look broken?
a)
Light is refracting
b)
Light is reflecting
c)
Light is absorbing
d)

Light is Scattering

53.
What is light doing off this mirror?
a)
Reflecting
b)
Refracting
c)
Absorbing
d)
Scattering
54.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
55.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
56.
What happens with light when it bounces back in your eyes?
a)
Refraction
b)
Reflection
c)
Absorption
57.
What is a piece of glass that bends white light?
a)
Visible
b)
Stain Glass
c)
Prism
58.

Lenses always________light.

a)

reflect

b)

refract

c)

transmit

d)

absorb

59.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
60.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
61.

of visible light what has the longest wavelength and the shortest.

a)

Violet, red

b)

transverse, ray

c)

red, violet

d)

white light

62.

what is this ?

a)

mirror

b)

lens

63.

what is this ?

a)

mirror

b)

lens

64.

which type of mirrors ?

a)

plane

b)

concave

c)

convex

65.

Which type of mirrors ?

a)

plane

b)

concave

c)

convex

66.

which type of mirrors ?

a)

plane

b)

concave

c)

convex

67.
What happens when light hits an object you can see?
a)
The light turns corners.
b)
The light curves around the object.
c)
The object reflects the light.
d)
The light and the object do not form a shadow.
68.
Through what kind of matter does light move fastest?
a)
liquids
b)
air
c)
matter that is lighter in color
d)
matter that is in larger objects 
69.
What happens to blue light when it hits a shirt that appears blue?
a)
The light is reflected.
b)
The light is absorbed.
c)
The light is refracted.
d)
The light is blocked.
70.
What is a property of a transparent object?
a)
Almost all of the light rays that reach it are scattered.
b)
Almost all of the light rays that reach it are absorbed.
c)
Almost all of the light rays that reach it are reflected.
d)
Almost all of the light rays that reach it pass through it.
71.
Which is translucent?
a)
tissue paper
b)
air
c)
wood
d)
clear plastic
72.
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.
73.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
74.
If you wanted a gift to be a surprise, what kind of container would you put it in?
a)
transparent
b)
thick
c)
opaque
d)
translucent
75.
The moon is a source of light.
a)
True
b)
False
76.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
77.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
78.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
79.
A convex lens curves ____________.
a)
outward
b)
inward
c)
opaque
d)
refracts
80.
A concave lens curves _____________.
a)
outward
b)
inward
c)
opaque
81.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
82.
Why do we see objects as black?
a)
They absorb all the light
b)
They reflect all the light
c)
They absorb some light and reflect 
83.
What do all waves have in common?
a)
nothing
b)
they carry energy
c)
they absorb light
d)
you can see them
84.
4. What separates white light into different colors?
a)
transmission
b)
absorption
c)
scattering
d)
refraction
85.
How does light travel from a source?
a)
Around corners
b)
In circles
c)
Very slowly
d)
In a straight line
86.
A wood door is 
a)
translucent
b)
transparent 
c)
opaque
87.
Which way best describes how light moves?
a)
in circles
b)
slowly
c)
straight line
d)
faster through opaque objects
88.
Which material is NOT translucent?
a)
Brick
b)
Tissue paper
c)
Thin sheet of plastic
89.
What is light?
a)
A form of energy
b)
A form of sound
c)
bright stuff
d)
A form of excitement
90.
Which material is opaque?
a)
Brick
b)
Water
c)
Tissue Paper
d)
Glass
91.
Which material is transparent?
a)
Clear glass
b)
Tissue paper
c)
Shoe
d)
Wax paper
92.
What is the main source of light?
a)
Light bulbs
b)
Candles
c)
Sun
d)
Fluorescent lights
93.
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.
94.
Which one is an example of light being reflected?
a)
Seeing yourself in a mirror
b)
Lighting a candle
95.
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
96.
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
97.
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
98.
Which color absorbs ALL colors?
a)
yellow
b)
white
c)
black
d)
red
99.
What kind of surface will NOT have a clear reflection?
a)
Smooth lake
b)
Mirror
c)
Bumpy, rough surface
d)
Smooth surface
100.
Why are mirrors made of glass?
a)
It is cheap.
b)
It is smooth.
c)
It can be cut in many ways.
101.
Which one is NOT a property of light?
a)
Refraction
b)
Brightness
c)
Color
102.
What is the name of the object used to separate light?
a)
Prism
b)
flashlight
c)
water
d)
Glass
103.

An example of a natural light source is

a)

the moon

b)

a candle

c)

the sun

d)

a torch

104.

When an object blocks light, you get

a)

an eclipse

b)

a surprise

c)

a shadow

d)

darkness

105.

The moon _________ the sun's light.

a)

reflects

b)

absorbs

c)

turns on

d)

dims

106.

Light cannot go around...?

a)

corners

b)

bends

c)

a wall

d)

all of the above

107.

Light travels in

a)

zig zags

b)

waves

c)

straight lines

d)

circles

108.

Which surface would reflect light the best?

a)

light coloured and smooth

b)

dark coloured and smooth

c)

dark coloured and rough

109.

Which object would reflect the most light?

a)

A polished metal knife

b)

A cricket bat

c)

A rusty tin

d)

A blue sheet of paper

110.

Mirrors work by

a)

Absorbing the light

b)

Refracting the light

c)

Reflecting the light

d)

Letting the light through

111.

How do we see an object?

a)

Light reflects off the object and into our eyes.

b)

Light travels from our eyes and reflects off the object

c)

Light reflects off our eyes and enters the object

d)

The object produces its own light

112.

Which of these statements is false?

a)

Light travels very fast

b)

Light can pass through any material

c)

Light travels in straight lines

d)

We need light to see

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