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Worksheetslight
Total questions: 101
Worksheet time: 1hrs 16mins
Name
Class
Date
1.
What particles make up light?
a)
Photons
b)
Neutrons
c)
Protons
2.
Light behaves like both a particle and a ______.
a)
Mass
b)
Wave
c)
Current
3.
What is the speed of light in air?
a)
140,000 miles/sec
b)
186,000 miles/sec
c)
60 miles/hour
d)
120 miles/hour
4.
A light year is...
a)
The speed light travels
b)
How long it takes light to get to you from the sun
c)
The distance light can travel in a year
d)
How many years it takes light to be emitted
5.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
6.
What does reflection mean?
a)
bending light
b)
bouncing light
7.
What does refraction mean?
a)
bending light
b)
bouncing light
8.
What type of waves does light travel in?
a)
transverse
b)
compression
c)
high and low waves
d)
waves like the ocean
9.
What is this a picture of?
a)
reflection
b)
refraction
10.
Why does light refract?
a)
speeds up
b)
gets hot
c)
slows down
d)
gains energy
11.
Light travels through an object during
a)
absorption
b)
reflection
c)
transmission
d)
diffraction
12.
The full spectrum of light energy is called the__________
a)
broad spectrum
b)
electromagnetic spectrum
c)
helium spectrum
d)
natural light spectrum
13.
Electric and magnetic fields produce
a)
electricity
b)
magnets
c)
longitudinal waves
d)
light
14.
What is the earth's primary source of light energy?
a)
moon
b)
sun
c)
waves
d)
fire
15.
The height of the sound waves
a)
Frequency
b)
Amplitude
c)
Wavelength
16.
4 is
a)
radio
b)
UV
c)
Visible Light
d)
X-ray
17.
EM waves have the same speed but different:
a)
frequency & medium
b)
wavelength & frequency
c)
medium & wavelength
d)
color & medium
18.
When the surface of a mirror curves inward, like the inside of a bowl, it is called a
a)
Plane Mirror
b)
Convex Mirror
c)
Concave Mirror
d)
Diffuse Mirror
19.
Which wavelength of visible light has the lowest energy?
a)
Red
b)
Yellow
c)
Orange
d)
Blue
20.
Which of the following types of radiation has the shortest wavelength and the highest frequency?
a)
Radio Waves
b)
Infrared
c)
Visible
d)
X-Rays
21.
What is light?
a)
Is all around us, and we need it to see.
b)
Is a force that we need.
22.
Light is a KIND of ENERGY.
a)
True
b)
False
23.
All light has a SOURCE, or something it comes from.
a)
True
b)
False
24.
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
25.
Which of these are examples of NATURAL sources of light?
a)
Sun
b)
Stars
c)
Lightning
d)
ALL of them
26.
Which of these are examples of ARTIFICIAL sources of light?
a)
Lightbulbs
b)
Neon signs
c)
Televisions
d)
ALL of them
27.
What does ARTIFICIAL mean?
a)
Made by humans
b)
Natural
28.
Which of these is our MAIN (most important) source of light?
a)
Lightbulbs
b)
The Sun
c)
Fire
d)
All of them
29.
How does light travel/move?
a)
In ONE direction, VERY fast
b)
In ALL directions, VERY fast
30.
What happens when light hits an object?
a)
Some of the light jumps in different directions
(bounces)
(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.
31.
_______ is when light hits and object and it BOUNCES off.
a)
Reflection
b)
Refraction
32.
Which objects REFLECT more light?
a)
Shiny objects
b)
Dull objects (not shiny)
33.
Light can pass through objects.
a)
TRUE
b)
FALSE
34.
Through which objects does light pass MORE?
a)
Transparent objects, like glass windows
b)
Opaque objects (not transparent), like a plant
35.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
36.
When light passes through things it ________.
a)
BENDS
b)
STAYS in the SAME direction.
37.
___________ is when light BENDS or CHANGES direction.
a)
Reflection
b)
Refraction
38.
Refraction makes objects look different.
a)
TRUE
b)
FALSE
39.
Which of these objects use REFRACTION?
a)
Telescope
b)
Magnifying glass
c)
Microscope
d)
ALL of them
40.
A Magnifying glass uses refraction to make things look closer.
a)
TRUE
b)
FALSE
41.
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.
42.
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
43.
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.
44.
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.
45.
Which is translucent?
a)
tissue paper
b)
air
c)
wood
d)
clear plastic
46.
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.
47.
Which is transparent?
a)
a wooden fence
b)
clean water
c)
aluminum foil
d)
a purple balloon
48.
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
49.
The moon is a source of light.
a)
True
b)
False
50.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
51.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
52.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
53.
A convex lens curves ____________.
a)
outward
b)
inward
c)
opaque
d)
refracts
54.
A concave lens curves _____________.
a)
outward
b)
inward
c)
opaque
55.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
56.
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
57.
What do all waves have in common?
a)
nothing
b)
they carry energy
c)
they absorb light
d)
you can see them
58.
4. What separates white light into different colors?
a)
transmission
b)
absorption
c)
scattering
d)
refraction
59.
How does light travel from a source?
a)
Around corners
b)
In circles
c)
Very slowly
d)
In a straight line
60.
A wood door is
a)
translucent
b)
transparent
c)
opaque
61.
What is being blocked when a shadow is formed?
a)
Light Source
b)
Light Path
c)
Object
d)
Eye
62.
The three primary colors of light are
a)
Red, Blue, Yellow
b)
Pink, Green, Blue
c)
Violet, Green, Red
d)
Blue, Green, Red
63.
Why does an apple appear red?
a)
All colors are absorbed & none are reflected
b)
All colors are absorbed except for blue, which is reflected
c)
All colors are reflected and none are absorbed
d)
All colors are absorbed except for red, which is reflected
64.
How does light travel
a)
It curves around corners
b)
Really slow
c)
In a straight line
d)
In circles
65.
Which color reflects the least light?
a)
Black
b)
White
c)
Blue
d)
Red
66.
Sunlight is
a)
not light at all
b)
red light
c)
yellow light
d)
white light
67.
Which of the following is the best reflector of light?
a)
Lens
b)
Microscope
c)
Mirror
d)
Prism
68.
Light enters this part of the eye first.
a)
Retina
b)
Cornea
c)
Lens
d)
Cones
69.
Humans can see colors because of these photo receptor cells in the Retina called
a)
rods
b)
optic cells
c)
cones
d)
sclera
70.
Objects that reflect ALL colors will appear _____?
a)
Black
b)
White
c)
Gray
d)
Multi-colored
71.
Objects that ABSORB all colors of light will appear _______.
a)
white
b)
black
c)
multi-colored
d)
gray
72.
If you are using a green color filter, what color will you only see?
a)
blue
b)
green
c)
white
d)
red
73.
If you are using a red color filter, blue objects will appear what color?
a)
purple
b)
blue
c)
red
d)
black
74.
Why can we sometimes see only parts of the moon?
a)
The path of light can only reach half of the moon at a time.
b)
The path of light from Earth to the Sun is blocked.
c)
The moon is partially eaten by giant zombie rodents, but it can regrow.
d)
Our brain just wants to make things up to confuse us.
75.
Which of the following would not reflect light?
a)
Mirror
b)
Water
c)
Glasses
d)
Brick Wall
76.
What is the purpose of a model in science?
a)
To make science look cool.
b)
To explain a phenomena or process.
c)
To make a topic interesting.
d)
To explain vocabulary.
77.
What percentage of colors makes white light?
a)
100% of red, green, and blue
b)
100% of red, blue, and yellow
c)
0% of red, green, and blue
d)
50% of all colors
78.
Which term describes when light bounces off of a smooth surface?
a)
Refraction
b)
Transmission
c)
Absorption
d)
Reflection
79.
A girl in her bedroom saw her sister break her mother's lamp in the living room. Explain how this could be possible.
a)
The girl can see through the wall.
b)
The girl can see her sister, because light can bend.
c)
The girl can see her sister because of a reflective surface in the kitchen.
d)
Since there is light in the living room and bedroom, she is able to see.
80.
What two colors make purple?
a)
Red and White
b)
Red and Blue
c)
Red and Green
d)
Red and Black
81.
What does refletion 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.
82.
Which window is opaque?
a)
Window 1
b)
Window 2
c)
Window 3
d)
None
83.
Which images are opaque?
a)
A & C
b)
A,C,E, & F
c)
D, E, & F
d)
A & E
84.
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
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.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
88.
What is a prism?
a)
a transparent object that separates white light
b)
an opaque object that appears black
c)
a translucent object
89.
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
90.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
91.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
92.
Which term means to bounce off the surface of something?
a)
Refract
b)
Absorb
c)
Reflect
d)
prism
93.
What color would an object need to be if it did not reflect any colors of white light?
a)
Red
b)
Black
c)
White
d)
Clear
94.
What kind of object blocks all light?
a)
Opaque
b)
Translucent
c)
Transparent
d)
Reflected
95.
We can see the color of Beyonce's dress because the light was ....
a)
Reflected
b)
Reflected and Absorbed
c)
Absorbed and Refracted
d)
Absorbed
96.
When light passes through a new medium such as water it does what?
a)
refracts
b)
reflects
97.
What happens when the primary colors of light are mixed together?
a)
They make white light
b)
They make black light
c)
They make purple light
98.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
99.
When light passes through a prism the light is bent and breaks into the visible spectrum. What color bends the most and has the shortest wavelength?
a)
Red
b)
Yellow
c)
Blue
d)
Violet
100.
What is a prism?
a)
a tool that separates white light into colors
b)
an opaque object that appears black
c)
a translucent object
101.
A block of wood is opaque.
a)
true
b)
false
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