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WorksheetsLight Waves
Total questions: 38
Worksheet time: 24mins
Name
Class
Date
1.
Material that allows light to pass through allowing you to see "clearly" to the other side
a)
opaque
b)
translucent
c)
transparent
2.
Light is a form of
a)
energy
b)
radiation
c)
reflection
3.
What is reflection in simple terms?
a)
Soaks up light
b)
Passes through
c)
light bounces off
4.
Wax paper or a foggy window is an example of what type of material.
a)
transparent
b)
translucent
c)
opaque
5.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
6.
All waves carry
a)
energy
b)
light
c)
matter
d)
particles
7.
The material in which a wave passes through is called____
a)
radiation
b)
particles
c)
medium
d)
space
8.
The type of wave that can travel through either matter or empty space:
a)
Mechanical Waves
b)
Electromagnetic Waves
9.
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.
10.
Does the bird reflect or absorb orange?
a)
Reflect
b)
Absorb
11.
Does the frog reflect or absorb green?
a)
Reflect
b)
Absorb
12.
What interaction is occuring in the photos.
a)
Reflection
b)
Refraction
13.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
14.
Which images are opaque?
a)
A & C
b)
A,C,E, & F
c)
D, E, & F
d)
A & E
15.
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
16.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
17.
Transfer of energy when a wave disappears into a surface
a)
Transparent
b)
Refraction
c)
Reflection
d)
Absorption
18.
Based on the T-shirt pictured, which is true?
a)
All colors are absorbed
b)
All colors are reflected
c)
Some colors are reflected and some are absorbed
d)
A black T-shirt would keep someone 'cooler' in the summer than a white T-shirt
19.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
20.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
21.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
22.
Which of the following electromagnetic waves is given off as heat?
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
23.
How are electromagnetic waves different from other waves?
a)
They have very short wavelengths
b)
They transmit energy instead of matter
c)
They can travel through a vacuum
d)
They can change direction by reflection
24.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)
Radio
25.
________________ are waves used by cops to test the speed of your car with RADAR.
a)
Ultraviolet
b)
Infrared
c)
Radio
d)
Microwaves
26.
______ waves are vibrations in electrical and magnetic fields.
a)
Sound
b)
Mechanical
c)
Electromagnetic
d)
Compression
27.
Airport security is an example of _________.
a)
infrared rays
b)
radio waves
c)
x-rays
d)
gamma rays
28.
The speed of light (radiation) is _________km/second.
a)
3,000
b)
300
c)
300,000
29.
In what form does the Sun's energy travel to Earth?
a)
Heat
b)
Electrical energy
c)
Electromagnetic radiation
d)
Mechanical energy
30.
Which objects on the table are "Translucent"?
a)
Fish Bowl; Supply Box; Goggles
b)
Pencil; Fish Bowl; Cup
c)
Fish Bowl; Supply Box; Pitcher
31.
Which objects on the table are "Transparent"?
a)
Rock; Pencil
b)
Cup; Goggles
c)
Supply Box; Fish Bowl
32.
Which interaction is occurring in the picture?
a)
Reflection
b)
Refraction
33.
The velocity of light in vacuum is 300,000,000 ms. This number written in scientific notation is _______ ms
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
34.
What happens to the angle of refraction as the index of refraction increases?
a)
The angle increases
b)
The angle of refraction decreases
c)
It stays the same
35.
Which color of light is produced when all of the colors of visible light in the EM spectrum are combined?
a)
white
b)
gray
c)
black
d)
brwon
36.
Light is produced by
a)
vibrating electric and magnetic fields
b)
vibrations of electric fields
c)
vibrations of magnetic fields
d)
vibrations of particles colliding
37.
3.0 X 108
a)
3,000,000
b)
300,000,000
c)
30,000,000
d)
3,000,000,000
38.
The distance from the Earth to the sun is 149,600,000 km. How long does it take for light to travel from the sun to the earth?
Time = distance ÷ speed Light travels at 300,000 km/s
Time = distance ÷ speed Light travels at 300,000 km/s
a)
Time = 149,600,000 ÷ 300,000
b)
Time = 300,000 ÷ 149,600,000
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