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Light and Vision

Total questions: 125

Worksheet time: 2hrs 18mins

Name
Class
Date
1.
Light travels in a straight line
a)
True
b)
False
2.

What does reflection mean?

a)
It is when the light changes the material and the direction of it changes as well. 
b)
It is when the material is rebounding the light.
3.
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
4.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
5.
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
6.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
7.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
8.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
9.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
10.
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
11.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
12.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
13.

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

14.

This is the example of dispersion of light

a)

sky looks bright orange in the evening

b)

shadow

c)

Pool seems shallower

d)

rainbow

15.
What is being blocked when a shadow is formed?
a)
Light Source
b)
Light Path
c)
Object
d)
Eye
16.

Which of the following is NOT a source of light?

a)

eyes

b)

lit candle

c)

sun

d)

firefly

17.

We are able to see the moon because it ____________

a)

gives out light

b)

glows

c)

reflects light from the sun

d)

reflects light from the earth

18.

Light is able to pass through __________________ materials

a)

transparent

b)

shiny

c)

dull

d)

opaque

19.

Light is unable to pass through ________________ objects

a)

opaque

b)

coloured

c)

blunt

d)

dark

20.
What are the three primary colours of light?
a)
Red,Yellow,Blue
b)
Red,Green,Yellow
c)
Red,Green,Blue
d)
Yellow,Blue,Green
21.
Primary colors of light can combine to make
a)
black light
b)
white light
c)
primary pigments
d)
ultraviolet light
22.
An object appears red because it
a)
reflects light waves of all colors
b)
reflects light waves of red
c)
absorbs light waves of red
d)
transmits light waves of all colors
23.
Which is true of a green grape?
a)
It absorbs green light.
b)
It absorbs white light.
c)
It reflects green light.
d)
It reflects white light.
24.
Why is the sky blue?
a)
because the atmosphere absorbs blue light and reflects the other colors
b)
because nitrogen and oxygen molecules scatter blue light more than the other colors
c)
because the ocean reflects its blue color to the sky
d)
because nitrogen and oxygen molecules scatter red and oranges away during the sunrise leaving blue for the day time
25.
Which is the angle of refraction?
a)
Angle 1
b)
Angle 2
26.
What type of lens or mirror is shown as figure (a) in  this picture?
a)
Convex Mirror
b)
Concave Mirror
c)
Convex Lens
d)
Concave Lens
27.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
28.

Which lens represents the path light takes through a concave lens?

a)
b)
c)
d)
29.
Light travels in a straight line
a)
True
b)
False
30.
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
31.
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
32.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
33.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
34.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
35.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
36.
White light is made up of _________________ colors.
a)
10
b)
3
c)
7
d)
70
37.
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
38.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
39.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
40.

Which type of wave does light travel in?

a)

Ocean wave

b)

Compression wave

c)

Transverse waves

d)

Radio wave

41.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
42.
 Refraction can separate white light into
a)
a. infrared waves.
b)
b. different colors.
c)
c. ultraviolet light.
d)
d. longer wavelengths.
43.

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

a)

A

b)

B

c)

C

d)

D

44.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
45.
a)
Reflection
b)
Refraction
46.
Which color travels the quickest and has the shortest wavelength?
a)
Red
b)
Violet
47.
The distance between two crests or two troughs is the...
a)
Crest/Peak
b)
Trough
c)
Wavelength
48.
Which color travels the slowest and has the longest wavelength?
a)
Violet
b)
Red
49.

Name structure A

a)

Pupil

b)

Iris

c)

Cornea

d)

Retina

50.

Name Structure B

a)

Lens

b)

Pupil

c)

Sclera

d)

Cornea

51.

Name structure G

a)

Lens

b)

Pupil

c)

Optic Nerve

d)

Ciliary Muscles

52.

What structure is responsible for carrying sensory impulses from the eye to the brain?

a)

Retina

b)

Iris

c)

Optic Nerve

d)

Rods & Cones

53.

What will happen to your pupils if you are in a really bright room?

a)

They will contract

b)

They will expand

c)

They will burst into flames

d)

They will stay the same size

54.

What structure of the eye controls the size of the pupils?

a)

Ciliary Muscles

b)

Iris

c)

Lens

d)

Retina

55.

What is the function of the Lens?

a)

Lining of the back of the eye that contains light receptor cells.

b)

Regulates how much light enters the eye

c)

Tough, transparent, protective coating that bends light as it enters the eye

d)

Focuses light onto the retina

56.

Name structure C

a)

Ciliary Muscles

b)

Retina

c)

Optic Nerve

d)

Iris

57.

Name structure F

a)

Sclera

b)

Cornea

c)

Optic Nerve

d)

Lens

58.

Which type of animals are likely to have binocular vision?

a)

Insects

b)

Prey

c)

Predators

d)

Mammals

59.

What happens to your eyes if you are in a dark room?

a)

Your Iris will narrow to allow more light in

b)

Your pupils will widen to let in more light

c)

Your pupils will narrow to let in more light

60.

A study was carried out to investigate colour deficiency in different ethnicity groups. 500 boys across different ethnicities were tested for colour blindness. The results are shown. How many Caucasian boys were colour blind?

a)

96

b)

56

c)

28

d)

32

61.

A study was carried out to investigate colour deficiency in different ethnicity groups. 500 boys across different ethnicities were tested for colour blindness. The results are shown. How many Hispanic boys were colour blind?

a)

13

b)

16

c)

19

d)

12

62.

An investigation was carried out to determine if two eyes are better than one. A pupil was blindfolded and had to thrown a bean bag to hit a target. Out of 20 throws, he successfully hit 9 of them. What is this as a percentage?

a)

49%

b)

23%

c)

40%

d)

45%

63.

An investigation was carried out to determine if two eyes are better than one. A pupil was blindfolded and had to thrown a bean bag to hit a target. On his first attempt, he managed to hit the target 10 times. On the second attempt he hit it 14 times. What is the percentage change in successful attempts?

a)

50%

b)

40%

c)

45%

d)

35%

64.

Identify structure D

a)

Retina

b)

Optic Nerve

c)

Sclera

d)

Lens

65.

Identify Structure E

a)

Retina

b)

Sclera

c)

Optic Nerve

d)

Lens

66.
Light travels in a straight line
a)
True
b)
False
67.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
68.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
69.

Which statement is true for refraction of light? Choose 2 answers.

a)

When it enters a denser medium (e.g. from air to glass), it changes direction towards the normal.

b)

When it enters a denser medium (e.g. from air to glass), it changes direction away from the normal.

c)

When it enters a less dense medium (e.g. from glass to air), it changes direction towards the normal.

d)

When it enters a less dense medium (e.g. from glass to air), it changes direction away from the normal.

70.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
71.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
72.
White light is made up of _________________ colors.
a)
10
b)
3
c)
7
d)
70
73.
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
74.
a)

Image

b)

Reflection

c)

Shadow

d)

Colour

75.

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

a)

a torch

b)

a lamp

c)

the moon

d)

the sun

76.

Opaque is?

a)

Material that allows light to pass through

b)

Light made by nature

c)

Material that allows no light to pass through

77.
What does reflection mean?
a)
Light bouncing off an object.
b)
Light is bending around an object.
c)
Light is moving through and object.
d)
This is no light.
78.

Why does the cat form a shadow?

a)

It reflects light

b)

It blocks light

79.
Which part of the eye opens in dark places and closes in bright places?  
a)
Cornea
b)
Retina
c)
Pupil
d)
Lens
80.
Which part of the eye contains light sensitive nerves?  
a)
Cornea
b)
Lens
c)
Retina
d)
Vitreous Humor
81.

How does the light enter the pinhole camera?

a)

through a lens

b)

through a mirror

c)

through a small hole

d)

through a prism

82.

When the light hit an opaque object, what happens to it?

a)

it is scattered in all directions

b)

some of it is absorbed, some of it is transmitted

c)

All of it is absorbed

d)

All of it is reflected

83.

When an angle of incidence is increased, what happens to the angle of reflection?

a)

it increases

b)

it decreases

c)

it stays the same

d)

it becomes more diffuse

84.

When white light strikes a blue object, which color(s) is/are absorbed?

a)

None of the colors are absorbed but blue

b)

Some of the red

c)

Mostly the green

d)

all colors are absorbed but blue

85.
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
86.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
87.
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
88.
Band of color in a rainbow, or from a light passing through a prism.
a)
Spectrum
b)
Space
c)
Prism
d)
Refraction
89.
What does light do when it hits an object that it cannot pass through?
a)
It creates a shadow
b)
It passes through anyway
90.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
91.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
92.
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
93.
Why does this the t-shirt appear red and the shorts appear blue?
a)
The t-shirt reflects red light, the shorts reflect green light, other colours are absorbed.
b)
The t-shirt reflects blue light, the shorts reflect red light, other colours are absorbed.
c)
The t-shirt reflects red light, the shorts absorb yellow light, all other colours are reflected
d)
The t-shirt reflects red light, the shorts reflect blue light, other colours are absorbed.
94.

Light travels... (select 2 answers)

a)

Around corners

b)

In straight lines

c)

Faster in glass than in air

d)

Faster than sound

95.

The speed of light is.....

a)

300,000,000m/s

b)

340m/s

c)

1500m/s

d)

5000m/s

96.

The speed of sound in air is.....

a)

1500m/s

b)

340m/s

c)

5000m/s

d)

300,000,000m/s

97.

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

a)

A

b)

B

c)

C

d)

D

98.

Nothing can travel faster than light in the whole universe

a)

False

b)

True

99.
Which color travels the quickest and has the shortest wavelength?
a)
Red
b)
Violet
100.

What is happening to the light ray at the surface of the water to mean the fish appears higher up than it is?

a)

The light ray is reflecting

b)

The light ray is refracting

c)

The light ray is scattering

d)

The light ray is absorbed

101.

If I shine white light at a red filter, what will I see the other side of the filter?

a)

White light

b)

No light

c)

Red light

d)

Yellow light

102.

Which figure represents the path light takes through a converging lens?

a)
b)
c)
d)
103.
Which color travels the slowest and has the longest wavelength?
a)
Violet
b)
Red
104.

What does "refraction" mean?

a)

The change of direction of a light ray

b)

The increase of mass in an object

c)

The increase of temprature

d)

The way a luminous object reflects light

105.

What is are the 2 different types of reflection?

a)

Reflected Ray / Rough Surface

b)

Specular Scattering

c)

Specular Reflection / Diffuse Scattering

d)

Rough Transprent / Diffuse Surface

106.

What are the 2 different types of lenses?

a)

Convex / Converge

b)

Coverage / Conrage

c)

Croex / Contage

107.

PLANE MIRROR

a)

SPECULAR

b)

DIFFUSE

108.

WAVY SEA

a)

SPECULAR

b)

DIFFUSE

109.

SNOW

a)

SPECULAR

b)

DIFFUSE

110.

GLARE ON PAIR OF EYEGLASSES

a)

SPECULAR

b)

DIFFUSE

111.
What is the incident ray?
a)

The ray of light leaving the mirror

b)

The ray of light approaching the mirror/the ray given off from a light source

112.
The point from which all of the light rays diverge is called the:
a)
image point
b)
luminous object
c)
origin
d)
focal point
113.

The picture shows which type of reflection?

a)

Specular Reflection

b)

Optical Reflection

c)

Diffuse Reflection

d)

Scatter Reflection

114.

The angle between the incident ray and the normal. (X on the diagram) is called the:

a)

Angle of Optic Sight

b)

Angle of Reflection

c)

Angle of Incidence

d)

Angle of Normal

115.

The angle between the reflected ray and the normal (labelled Y on the diagram) is called the:

a)

Angle of Incidence

b)

Angle of Reflection

c)

Angle of Normal

d)

Angle of Optic Sight

116.

An imaginary line that is drawn at a right angle (90 degrees) to a mirror (Green line) is called the:

a)

Reflected Ray

b)

Normal

c)

Incident Ray

d)

Perpendicular Ray

117.

When light reflects off of a completely smooth surface it is called:

a)

Diffuse Reflection

b)

Optical Reflection

c)

Smooth Reflection

d)

Specular Reflection

118.

If the angle of incidence in the diagram is 80°, the angle of reflection will be:

a)

10°

b)

100°

c)

90°

d)

80°

119.

Match the following

a)

Opaque

1.

Materials light cannot pass through

b)

Lens

2.

Piece of glass that focuses light

c)

Specular

3.

Reflection from a smooth surface

d)

Luminous

4.

Something that gives out light

e)

Normal

5.

Imaginary lines at right angles to a surface

120.

what are primary colors

a)

red

b)

purple

c)

yellow

d)

blue

121.
Light enters the eye through the....
a)
iris
b)
cornea
c)
retina
d)
pupil
122.
Upside down images are formed on the ____________ at the back of the eyeball.
a)
cornea
b)
iris
c)
retina
d)
pupil
123.

This polar bear is happy because someone gave him a pumpkin to play with. But, this polar bear is sad because it looks like his head is no longer attached to his body. :( What property of light creates this optical illusion?

a)

Refraction

b)

Reflection

c)

Transparency

d)

Opaqueness

124.

Reorder the sentences to show the process of how the eye enables us to see objects.

a)

Light enters the eye through the pupil

b)

The size of the pupil is altered by the iris

c)

The cornea and lens, focus light onto the retina

d)

The retina contains two light sensitive cells called rods and cones. When light hits these cells, chemical reactions produce electrical impulses that travel via the optic nerve to the brain

1)
2)
3)
4)
125.

Label the different part of the eye

a)Retina
b)Iris
c)Cornea
d)Pupil
e)Lens
f)Optic Nerve
1
2
3
4
5
6
1)
2)
3)
4)
5)
6)

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