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Light waves

Total questions: 130

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

What is it called when light waves enter a substance?

a)

refraction

b)

reflection

c)

energy

d)

absorption

2.

When light bounces off something it is known as _____________

a)

reflection

b)

refraction

c)

light energy

d)

mechanical energy

3.

The definition of the word refract is __________

a)

to make warm

b)

to go through

c)

to bend

d)

to create energy

4.

What color of the rainbow has the longest wavelength?

a)

red

b)

blue

c)

green

d)

violet

5.

A _________ object does not allow light to pass through it.

a)

opaque

b)

translucent

c)

light

d)

prism

6.

A ____________ object does allow a few light waves to pass through it.

a)

light

b)

translucent

c)

opaque

d)

long

7.

What type of wave is a sound wave?

a)

transverse

b)

mechanical

c)

longitudinal

d)

electrical

8.

The highest point of a wave is known as the ___________

a)

wavelength

b)

trough

c)

amplitude

d)

crest

9.

The louder the sound, the higher the ____________ of the wave.

a)

amplitude

b)

wavelength

c)

pitch

d)

compression

10.
Which statement best describes what waves are?
a)
wavy lines on graph paper
b)
disturbances that transfer energy
c)
light energy that changes particles of matter
d)
circles that move out from a central place 
11.
The light we can see. 
a)
visible
b)
gamma
c)
ultraviolet
12.
Can travel through matter (gas, liquid, solid) but not space. 
a)
light
b)
sound
13.
Can travel through matter (gas, liquid, solid) and empty space. 
a)
sound
b)
light
14.
Makes you get sunburn. 
a)
x-ray
b)
visible
c)
ultraviolet
15.
When light shines through a prism it creates a ________________
a)
colors
b)
ROY G. BIV
c)
spectrum
d)
electromagnetic wave
16.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
17.
What is reflection in simple terms?
a)
Soaks up light
b)
Passes through
c)
light bounces off
18.
Wax paper or a foggy window is an example of what type of material. 
a)
transparent
b)
translucent
c)
opaque
19.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
20.
Powerful energy, made in nuclear explosion and in stars. 
a)
gamma
b)
x-ray
c)
visible
21.
Shows all light from the sun and stars. 
a)
Electromagnetic Spectrum
b)
Camera
c)
Eyes
22.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
23.

bending of light that happens when light travels through different mediums (substances)

a)

reflection

b)

refraction

c)

diffusion

24.

Hollowed or rounded inward

a)

concave

b)

convex

25.

curved outward

a)

concave

b)

convex

26.

uneven reflection when a surface is not smooth, which causes the light rays to bounce off at unequal angles.

a)

reflection

b)

refraction

c)

diffusion

27.

When light bounces off an object- If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface.

a)

reflection

b)

refraction

c)

diffusion

28.

Objects that allow ALL light to pass through

a)

transparent

b)

translucent

c)

opaque

29.

Objects that allow SOME light to pass through

a)

transparent

b)

translucent

c)

opaque

30.

Objects that allow NO light to pass through

a)

transparent

b)

translucent

c)

opaque

31.

the height or depth of a wave that determines how much ENERGY the wave carries. In a sound wave, it is also synonymous with how much volume the wave carries.

a)

wavelength

b)

compression

c)

amplitude

32.

How is an electromagnetic wave different from a mechanical wave?

a)

An electromagnetic wave travels slower than a mechanical wave.

b)

An electromagnetic wave has a larger amplitude than a mechanical wave.

c)

An electromagnetic wave can travel through a vacuum, but a mechanical wave cannot.

d)

An electromagnetic wave has no wavelength, but a mechanical wave has a wavelength.

33.

Which of the following are not a part of the Electromagnetic Spectrum?

a)

Gamma Rays

b)

Radio waves

c)

Magnetic waves

d)

x-rays

34.

Gamma Rays are

a)

High energy

b)

Low energy

c)

Medium energy

d)

Just right

35.

Why does this car appears red under a white light?

a)

The car is absorbing the red light and reflecting the blue and green.

b)

The car is reflecting only the red light while absorbing the blue and green.

c)

The car is absorbing the red and green light while reflecting the blue.

d)

The car is absorbing the red, blue and green, but our eyes can only see the red.

36.

Reflection is to bouncing as refraction is to:

a)

bending.

b)

breaking.

c)

dissipating.

d)

halting.

37.

This drawing illustrates the ________________________ of a light wave.

a)

refraction

b)

reflection

c)

diffraction

d)

dispersion

38.

Suppose you shine a laser directly at a mirror so that the laser strikes it perpendicularly. The angle of reflection is 0.5°. What does this tell you about the mirror?

a)

The mirror’s surface is not perfectly flat. It is angled 0.5° in the location that the laser is striking.

b)

The incident light ray struck the mirror at a 0.5o angle.

c)

99.5% of the ray transmitted through the mirror while only 0.5% of the ray actually reflected.

d)

The mirror is cracked and angles upward at 0.5o.

39.

When a light ray strikes a smooth, flat surface, what is the relationship between the angle of incidence and the angle of reflection?

a)

They are equal.

b)

The angle of incidence is twice that of the angle of reflection.

c)

The angle of reflection is twice that of the angle of incidence.

d)

They combine to add up to 180o.

40.

In this diagram, which is the angle of incidence?

a)

Angle A

b)

Angle B

c)

Angle C

d)

Angle D

41.

The way that a surface reflects light depends on its texture. Rough surfaces such as cloth and wood tend to scatter light, reflecting it in many different directions. This type of reflection is called:

a)

diffuse reflection.

b)

specular reflection.

c)

incident reflection.

d)

distorted reflection.

42.

When light rays strike a rough surface, they are:

a)

scattered.

b)

focused.

c)

absorbed.

d)

refracted.

43.
Something that emits light is known as a(n) _____   _____. 
a)
light source
b)
flashlight
c)
light saber
d)
reflect
44.
If you see an object as orange,
a)
it is absorbing orange light and reflecting all other colors. 
b)
it is reflecting all colors. 
c)
it is absorbing all colors. 
d)
it is reflecting orange light and absorbing all other colors. 
45.
If you cannot see through an object, in other words, light does not pass through it,  it is 
a)
transparent.
b)
translucent.
c)
opaque.
d)
solid.
46.
This type of material allows most light to pass through but forms a blurry image, like looking through a fogged up window.
a)
opaque
b)
translucent
c)
transparent
d)
echo
47.
Sound waves are ___________ waves that can only travel through ______.
a)
transverse,   air
b)
transverse, matter
c)
longitudinal, liquids
d)
longitudinal, matter
48.
A green plant appears green because it is absorbing all colors except
a)
yellow.
b)
blue.
c)
red.
d)
green.
49.
Glasses and contacts contain ______ which bend light to hit your retina correctly.
a)
lenses
b)
glass
c)
polish
d)
coatings
50.
Which waves have the greatest amount of energy?
a)
gamma waves
b)
radio waves
c)
x-rays
d)
infrared light
51.
The bouncing back of a light ray after hitting a surface is known as...
a)
diffraction
b)
refraction
c)
rebounding
d)
reflection
52.
The bending of light is called refraction.
a)
True
b)
False
53.
What causes a yellow fire hydrant to appear yellow?
a)
It absorbs yellow light
b)
It reflects yellow light
c)
It transmits yellow light
d)
It reflects all colors except yellow
54.
Waves transport energy without transporting matter.
a)
True
b)
False
55.
Which wave has a greater frequency?
a)
A
b)
B
56.
Which wave has the greatest amplitude?
a)
The blue wave
b)
The red wave
57.
Which of the following is true about waves?
a)
When wavelength increases frequency increases
b)
When wavelength decreases, frequency increases
c)
When wavelength decreases, frequency decreases
58.
When light strikes an object, it can do all of the following, except...
a)
Be reflected
b)
Be refracted
c)
Be produced
d)
Be absorbed 
59.
Which type of electromagnetic radiation produces the heat we can feel coming from the toaster?
a)
Radio waves
b)
Infrared waves
c)
X-rays
d)
Gamma rays
60.
Which type of electromagnetic radiation is the reason we need sunglasses and sunscreen to avoid getting a sunburn?
a)
X-rays
b)
Gamma Rays
c)
Ultraviolet waves
d)
Infrared waves
61.
Which of the following is NOT true?
a)
Radio waves have lowest frequency
b)
Ultraviolet waves have highest energy
c)
Gamma waves have highest frequency
d)
Radio waves have longest wavelengths
62.
What can you see in a room that has no visible light?
a)
Only bright colored objects
b)
Only dark colored objects
c)
Only white objects
d)
Nothing at all
63.
What property of light makes this pencil appear to be bent or broken?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
64.
Light travels in a straight line
a)
True
b)
False
65.

Materials generally become warmer when light is ___.

a)

reflected

b)

refracted

c)

absorbed

d)

transmitted

66.

The color that you see in an object is the color it is __.

a)

reflecting

b)

absorbing

67.

Ray C represents __.

a)

reflection

b)

refraction

c)

transmission

d)

absorption

68.

Light __ travel through a vacuum.

a)

can

b)

cannot

69.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
70.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
71.

High frequency equals

a)

high energy

b)

low energy

c)

no change in energy

d)

none of the above

72.

Wave height

a)

frequency

b)

wavelength

c)

amplitude

d)

wave speed

73.

All waves can be reflected

a)

true

b)

false

74.

The bending of waves around a barrier.

a)

refraction

b)

diffraction

c)

resonance

75.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
76.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
77.
a)
Reflection
b)
Refraction
78.
Does the frog reflect or absorb green?
a)
Reflect
b)
Absorb
79.
Does the bird reflect or absorb orange?
a)
Reflect
b)
Absorb
80.
Frequency is measured in _______________.
a)
Newtons
b)
Meters
c)
ouch! That hurts!
d)
Hertz
81.
Why does the lower part of the child appear so much different in size from the upper part?
a)
The light rays that travel through water and then into air are refracted.
b)
The light rays that travel through water and then into air are enlarged.
c)
The light rays that travel through air and then into water are reflected.
d)
The light rays that travel through air and then into water are reduced.
82.

1. Your friends say that they saw a special nail polish that changes color when it is out in the sun. Can light from the sun cause the nail polish to change color?

a)

No. Light is not a physical thing, so it cannot change physical things like nail polish.

b)

Yes. Light from the sun can pull energy out of the nail polish, causing it to change color.

c)

Yes. The nail polish can take in energy from the light, causing it to change color.

d)

No. Light can only change things by warming them up, so it cannot cause the nail polish to change color.

83.

When a material allows light to pass through it,

a)

the material reflects the light and changes

b)

the material absorbs the light and doesn't change

c)

the material transmits the light and doesn't change

d)

material transmits the light and changes

84.

How are we able to perceive an object as being the color white?

a)

All colors of visible light are absorbed by an object and then reflected into our eye.

b)

All colors of visible light are reflected off an object and then to our eye.

c)

All colors of visible light are absorbed by an object and no light is being reflected into our eye.

85.

Type of mirror used in a convenience store to provide a wide angle view...

a)

Plane

b)

Convex

c)

Concave

86.

Type of mirror used by a dentist to get magnified view of a patient's teeth...

a)

Plane

b)

Convex

c)

Concave

87.

Type of mirror found in a bathroom...

a)

Plane

b)

Convex

c)

Concave

88.

Type of mirror used as a side mirror on a vehicle to provide a wide angle view...

a)

Plane

b)

Convex

c)

Concave

89.

Type of mirror that can produce a real image...

a)

Plane

b)

Convex

c)

Concave

90.

Type of mirror that can produce an inverted image...

a)

Plane

b)

Convex

c)

Concave

91.

Type of mirror that provides a wide angle view...

a)

Plane

b)

Convex

c)

Concave

92.

According to the law of reflection the angle of incidence is ____________ the angle of reflection.

a)

less than

b)

greater than

c)

equal to

93.
The following is a picture of what type of mirror? 
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
94.
The following is a picture of what type of mirror? 
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
95.

Images in a plane mirror are

a)

real

b)

larger

c)

same size

d)

smaller

96.

This ray diagram is for which mirror?

a)

concave

b)

convex

c)

plane

d)

window

97.

A virtual image is always

a)

virtual

b)

upright

c)

behind the mirror

d)

in front of the mirror

98.
a flat sheet of glass that has a smooth, silver-colored coating on one side
a)
plane mirror
b)
concave mirror
c)
convex mirror
d)
solid mirror
99.
Which of the mirrors is used as rear view mirror in vehicles?
a)
Concave
b)
Convex
c)
Plane
100.
What does The law of reflection state?
a)
the angle the incident ray makes with a line drawn perpendicular to the surface of the mirror.
b)
shows how rays change direction when they strike mirrors and pass through lenses.
c)
The angle of reflection is equal to the angle of incidence.
101.

Plane mirrors are?

a)

Curved inside

b)

Curved outside

c)

Flat

102.

Plane mirrors are coated with ?

a)

Gold

b)

Silver

c)

Copper

103.

The size of your reflection formed in the plane mirror is?

a)

Smaller than you

b)

Bigger than you

c)

No change / Same size

104.

What is the ray of light that strikes the surface ?

a)

Incident ray

b)

reflected ray

c)

normal ray

d)

normal

105.

Ray D represents __

a)

reflection

b)

refraction

c)

transmission

d)

absorption

106.

Ray A represents __

a)

reflection

b)

refraction

c)

transmission

d)

absorption

107.

Ray B represents __

a)

reflection

b)

refraction

c)

transmission

d)

absorption

108.

Any smooth surface that reflects light to form an image is a(n) ____.

a)

telescope

b)

microscope

c)

mirror

d)

lens

109.

The bowl of a shiny spoon forms an enlarged, upright image similar to that of a ____ mirror.

a)

wide-angle

b)

convex

c)

concave

d)

refracting

110.

The image formed by a plane mirror is ____.

a)

real and reversed

b)

real and upright

c)

upright and reversed

d)

virtual and inverted

111.

What type of mirror will produce an image that is inverted?

a)

Plane

b)

Concave

c)

Convex

112.

What type of mirror will produce an image that is smaller and wider?

a)

Plane

b)

Concave

c)

Convex

113.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

114.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

115.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

116.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

117.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

118.

What kind of lens is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

119.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

120.

What kind of lens is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

121.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

122.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

123.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

124.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

125.

What kind of lens is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

126.

What kind of lens is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

127.

What kind of lens is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

128.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

129.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

130.

What kind of mirror is in the picture?

a)

Concave

b)

Convex

c)

Plane

d)

Corner

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