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More about light

Total questions: 47

Worksheet time: 42mins

Name
Class
Date
1.

Which of these best demonstrates the reflection of light? (5.6C)

a)

Looking through the glass of a large window

b)

Looking at an image formed on a silver spoon

c)

Looking at a lightbulb that is glowing

d)

Looking at a star on a clear night

2.

When light travels through air into a prism, it bends and separates into many colors. In which other situation does light bend? (5.6C)

a)

When light moves through air into water

b)

When light hits a wall

c)

When light passes through outer space

d)

When light hits a mirror

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.
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
5.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
6.
When a rainbow is formed outside naturally, what causes the light to refract?
a)
A. Small raindrops
b)
B. Sunlight rays
c)
C. Tiny mirrors
d)
D. Glass prisms
7.
Which term means to bounce off the surface of something?
a)
Refract
b)
Absorb
c)
Reflect
d)
prism
8.
White light is made up of _________________ colors.
a)
10
b)
3
c)
7
d)
70
9.
Which color reflects all light?
a)
White
b)
Black
c)
Orange 
d)
Green
10.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
11.
Which of these causes the colors in a rainbow to separate?
a)
sunlight passing through raindrops
b)
strong winds
c)
Earth's gravity
d)
different colors of light going at different speeds
12.
This is used to separate white light into colors. 
a)
prism
b)
reflection
c)
sunlight
d)
spectrum
13.
What do water droplets in a rainbow act like?
a)
reflectors
b)
rays of light
c)
lasers
d)
prisms
14.
By passing light through a prism, you can tell ____________.
a)
that white light is made of different colors
b)
the weight of the prism
c)
the original source of light
d)
that blue light is brighter than white light
15.
What is the correct order of the colors of the rainbow?
a)
Red, Yellow, Orange, Blue, Indigo, Violet
b)
Red, Orange, Yellow, Green, Blue, Indigo, Violet
c)
Yellow, Orange, Red, Green, Blue, Violet, Indigo
16.
Which example shows light being reflected?
a)
using a microscope to make small objects look larger
b)
using a prism to show the colors of the spectrum
c)
using eyeglasses to see things better
d)
using a mirror to see your image
17.
When a pencil is put into a glass of water, it appears to be broken? Why does the pencil look broken?
a)
because the shiny glass reflects light
b)
because the water separates light into many colors
c)
because the part of the pencil outside the water casts a shadow
d)
because light rays are bent when they pass from air into water
18.
When light bounces off a smooth surface, this is known as which of the following?
a)
reflection
b)
refraction
c)
absorption
d)
deflection
19.
Bending of light as it passes from one material to another is known as which of the following?
a)
absorption
b)
reflection
c)
refraction
d)
mirror image
20.

When you see the color black...

a)

All colors are reflecting

b)

All colors are absorbed

c)

The color blacl is reflecting

d)

the color black is absorbed

21.

When light goes from one material(medium) to another it becomes bent, what term means bent?

a)

reflected

b)

refracted

c)

absorbed

d)

turned

22.

When light passes from air to water, what happens to the speed of the light?

a)

speeds up

b)

slows down

c)

stays the same

23.
The two kinds of reflection are 
a)
transparent and translucent
b)
opaque and translucent
c)
regular and diffuse
24.
A plane mirror produces a/an 
a)
a small, real image
b)
a large, real image
c)
 a small, virtual image
d)
a same sized, virtual image
25.

Which diagram represents specular reflection?

a)

A

b)

B

26.

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

a)

A

b)

B

c)

C

d)

D

27.
........... – the angle between the normal and the reflected ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
28.
What is reflection?
a)
Reflection is the bouncing  of light off the surface that it strikes on.
b)
Reflection is the absorbing of light off the surface that it strikes on.
c)
Reflection is the bending of light off the surface that it strikes on.
d)
Reflection is the scattering of light off the surface that it strikes on.
29.
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
30.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
31.

the number of images formed by two mirrors kept at an angle with each other

a)

360/ n - 1

b)

380/n -1

c)

310/n-1

d)

none

32.

What is the angle of mirror in periscope

a)

35

b)

45

c)

55

d)

65

33.

How does periscope works?

a)

A periscope works by using two mirrors to reflect light from one mirror to another for the person to see the things that is behind a high obstacle.

b)

It works by using one mirror to reflect for us to see things behind a high obstacle.

c)

It works by using one glass to reflect for us to see things behind a high obstacle.

34.

What is the type of mirror use in periscope?

a)

Convex mirror

b)

Concave mirror

c)

Plane mirror

35.

Farsightedness

a)

Myopia

b)

Hyperopia

c)

both

36.

Nearsightedness

a)

Myopia

b)

Hyperopia

c)

both

37.

Far objects appear blurry but close objects appear clear

a)

Myopia

b)

Hyperopia

c)

Both

38.

Close objects appear blurry but far objects appear clear

a)

Myopia

b)

Hyperopia

c)

Both

39.

May be corrected with contacts and/or glasses

a)

Myopia

b)

Hyperopia

c)

Both

40.

Focal point is in front of retina

a)

Myopia

b)

Hyperopia

c)

Both

41.
Which part of the eye opens in dark places and closes in bright places?  
a)
Cornea
b)
Retina
c)
Pupil
d)
Lens
42.
Which part of the eye is the place where images are inverted?  
a)
Retina
b)
Cornea
c)
Lens
d)
Iris
43.
Regulates the amount of light entering the eye and gives the eye its color.
a)
Iris
b)
Lens
c)
Pupil
d)
Retina
44.
What is the cornea?
a)
clear structure that bends light to focus on the retina
b)
white outer layer of the eyeball
c)
clear layer that forms front of the eye
d)
gel that fills space
45.
What is the aqueous humor?
a)
fibers that hold the lens in place
b)
thin structure that controls pupil
c)
clear, watery fluid
d)
helps refract light to the retina
46.
This structure focuses the images in the environment
a)
Sclera
b)
Lens
c)
Retina
d)
Cones
47.

What is a cataract?

a)

Shortening of the eyeball

b)

Cornea has too little curvature

c)

Double vision

d)

Clouding of the lens

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