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Light

Total questions: 78

Worksheet time: 2hrs 39mins

Name
Class
Date
1.
A cut piece of clear glass or plastic in the form of a triangle or other geometric shape.
a)
Person
b)
Prison
c)
Prism
d)
Preacher
2.
A tiny bundle of energy by which light travels
a)
Photographs
b)
Photos
c)
Photons
d)
Friends
3.
The bending of waves as they pass from one substance into another.
a)
Reaction
b)
Reflection
c)
Refraction
d)

Reposition

4.
The distance between one peak and the next in a wave
a)

Transparent

b)
Scattering
c)
Wavelength
d)

Frequency

5.
The term for any wave that hits a surface and bounces off
a)
Transparent
b)
Translucent
c)
Refraction
d)
Reflection
6.
Transfer of energy when a wave disappears into a surface
a)
Transparent
b)
Refraction
c)
Reflection
d)
Absorption
7.
The number of vibrations a wave makes in a given amount of time is a 
a)
Absorption
b)
Medium
c)
Frequency
d)
Photon
8.
A substance through which light travels.
a)
Wavelength
b)
Opaque
c)
Frequency
d)
Medium
9.
Which color happens when all colors of light are reflected?
a)
yellow
b)
white
c)
black
d)
red
10.
What color happens when all colors are absorbed ?
a)
blue
b)
black
c)
red
d)
white
11.
Which of the following explains why an apple looks red?
a)
reflects red and absorbs all other colors
b)
absorbs red and reflect all other colors
c)
reflects all colors
12.
Which wave travels in space?
a)
light
b)
sound
13.
Which property of light makes the the pen  in a glass looks broken?
a)
reflection
b)
refraction
c)
absorption
d)
brightness
14.
Which property of light is used to stay warm?
a)
absorption
b)
reflection
c)
brightness
15.
What portion of the Electromagnetic Spectrum is visible light?
a)
Most of the electromagnetic spectrum.
b)
A small part of the electromagnetic spectrum.
c)
Visible light IS the electromagnetic spectrum.
16.
The three primary colors of light are
a)
Red, Blue, Yellow
b)
Pink, Green, Blue
c)
Violet, Green, Red
d)
Blue, Green, Red
17.
How does light travel
a)
It curves around corners
b)
Really slow
c)
In a straight line
d)
In circles
18.
Which color reflects the least light?
a)
Black
b)
White 
c)
Blue
d)
Red
19.
Humans can see colors because of these photo receptor cells in the Retina called 
a)
rods
b)
optic cells
c)
cones
d)
sclera
20.
If you are using a green color filter, what color will you only see?
a)
blue
b)
green
c)
white
d)
red
21.
If you are using a red color filter, blue objects will appear what color?
a)
purple
b)
blue
c)
red
d)
black
22.
Light is a kind of.....
a)
reflection
b)
energy
c)
heat
d)
matter
23.

The moon creates light.

a)
True
b)
False
24.
What do all waves have in common?
a)
nothing
b)
they carry energy
c)
they absorb light
d)
you can see them
25.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
26.
The full spectrum of light energy is called the__________
a)
broad spectrum
b)
electromagnetic spectrum
c)
helium spectrum 
d)
natural light spectrum
27.
Which wavelength of visible light has the lowest energy?
a)
Red
b)
Yellow
c)
Orange
d)
Blue
28.
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
29.

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

30.

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

31.
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
32.
Light with a shorter wavelength has ___
a)
less energy
b)
more energy
c)
a smaller velocity
d)
a greater velocity
33.
Our eyes detect different energies of light as ___
a)
different colors
b)
different intensities
c)
different polarities
d)
different types of waves
34.
Light with slightly shorter wavelengths than what our eyes can see is called ___
a)
visible light
b)
ultraviolet light
c)
infrared light
d)
x-rays
35.
Light waves with the shortest wavelengths of all are called ___
a)
ultraviolet light
b)
microwaves
c)
x-rays
d)
gamma rays
36.
Light with slightly longer wavelengths than the reddest color we can see is called ___
a)
infrared light
b)
ultrared light
c)
subred light
d)
ultraviolet light
37.
Light with the longest wavelengths of all are called ___
a)
gamma rays
b)
x-rays
c)
microwaves
d)
radio waves
38.
The lowest part of the wave is?
a)
crest
b)
trough
c)
rarefaction
d)
wavelength
39.
The highest point on a wave
a)
trough
b)
amplitude
c)
crest
d)
wavelength
40.

Wave height

a)

frequency

b)

wavelength

c)

amplitude

d)

wave speed

41.

Is there light in outer space?

a)

No, because light needs matter to travel through.

b)

Yes, because light doesn't need matter to travel through.

42.

What is the amplitude of this model wave?

a)

0mm

b)

5cm

c)

15cm

d)

10mm

43.

What is the frequency of this model wave?

a)

10 waves per second

b)

3 waves per second

c)

6 waves per second

d)

2 waves per second

44.
Which of these is the best reflector of light?
a)
shiny metal
b)
white paper
c)
carpet
d)
wood
45.

What makes an image that is enters our eyes upside-down appear right-side up?

a)
glasses
b)
our brains
c)
our eyes
d)
cameras
46.
True or False: 
White light is composed of all the colors of the spectrum.
a)
true
b)
false
47.
Which of the following is not a primary color of light?
a)
Blue
b)
Red
c)
Yellow
d)
Green
48.
What is letter B
a)
Optic nerve
b)
Lens
c)
Cornea
d)
Retina
49.
What is letter E?
a)
Vitreous humor
b)
Retina
c)
Cornea
d)
Optic nerve
50.
What is letter F?
a)
Retina
b)
Pupil
c)
Vitreous humor
d)
Iris
51.
What is letter G?
a)
Sclera
b)
Retina
c)
Lens
d)
Vitreous humor
52.
What is letter H?
a)
Cornea
b)
Optic nerve
c)
Iris
d)
Retina
53.
What is letter I?
a)
Cornea
b)
Lens
c)
Vitreous humor
d)
Optic nerve
54.
Why does your pupil increase in size when you enter a dark room?
a)
To protect the eye
b)
to allow more light to enter the  eye
c)
to allow less light to enter the eye
d)
to look like a  pirate
55.

On what part of the eye are the cones located

a)
Iris
b)
lens
c)
retina
d)
pupil
56.
When you enter a dark room, what does the pupil do
a)
get larger
b)
get smaller
57.
what is the iris
a)
the colored part of the eye that controls the size of the pupil
b)
Transparent jellylike fluid that fills the eye and refracts light.
c)
Sends messages picked up by the retina to the brain 
d)
Hole passes different amounts of light
58.
This part of the eye has photoreceptors called rods and cones.  They help us to see color and see at night.  It is called:
a)
optic nerve
b)
brain
c)
retina
d)
cornea
59.
This part of the eye focuses light/images onto the retina.
a)
lens
b)
cornea
c)
cones
d)
vitreous humor
60.
This part protects the eye, especially the iris, pupil and lens.
a)
rods
b)
cornea
c)
optic nerve
d)
retina
61.
This part of the eye changes shape to control the amount of light that enters the eye.  It is also known as the colored part of the eye.  What is it called?
a)
pupil
b)
lens
c)
iris
d)
retina
62.
This part of the eye sends messages to the brain
a)
rods
b)
retina
c)
optic nerve
d)
cones
63.
The outer layer of the eye is the ________.
a)
Sclera
b)
Retina
c)
Choroid
d)
Cornea
64.
Photoreceptors that detect Color
a)
Cones
b)
Rods
65.
Photoreceptors that detect gray tones in low light
a)
Rods
b)
Cones
66.

A clear fluid that helps the cornea keep its rounded shape

a)

aqueous humor

b)

blind spot

c)

cones

d)

cornea

67.

As we learned in the gizmo, to focus on an object far away the lens must become....

a)

flatter

b)

rounder

68.

Identify each part of the electromagnetic spectrum:

a)Infrared
b)Microwave
c)Radio wave
d)Gamma ray
e)X-ray
f)Ultraviolet
g)Visible light
1
2
3
4
5
6
7
1)
2)
3)
4)
5)
6)
7)
69.

Which "item" represents the electromagnetic radiation with the lowest energy:

A
B
C
D
E
F
G
70.

Identify the wave of light with the highest frequency and the wave of light with the lowest frequency.

a)

Highest frequency

b)

Lowest frequency

1
2
1)
2)
71.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
72.

Light is emitted by

a)

electrons gaining energy and going up to a higher energy level

b)

electrons giving off energy as a photon and going down to a lower energy level

c)

little gremlins inside lightbulbs

d)

tractors

73.

True or False: Light always moves at the same speed through all substances.

a)

True

b)

False

74.

Refraction occurs

a)

When light bounces off an object

b)

When light changes speed moving from one media to another

c)

When light energy is absorbed by an object

d)

When light energy passes through a material

75.

A light year is

a)

the amount of time it takes for light to travel for a year

b)

the distance light travels in a year

76.

Which of the following transmits the most light energy?

a)

glass

b)

one way mirror film

c)

mirror

77.

Which of the following reflects the most light energy?

a)

glass

b)

one way mirror film

c)

mirror

78.

Match the following

a)

red and blue make

1.

magenta

b)

red and green make

2.

yellow

c)

green and blue make

3.

cyan

d)

all colors make

4.

white

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