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Light
Test Description: Light
Instructions: Answer all questions to get your test result.
1) Light can travel through
A
a vacuum
B
matter
C
both matter and a vacuum
D
neither
2) Which travel faster?
A
sound waves
B
light waves
3) Light waves are measured in
A
joules
B
newtons
C
hertz
D
nanometers
4) A light source is
A
something that smells
B
something that emits light
C
cold
D
big
5) A lightbulb transforms electric energy into
A
potential energy
B
sound energy
C
light energy
D
kinetic energy
6) A narrow beam of light that travels in a straight line is a
A
sound wave
B
nanometer
C
light ray
D
hertz
7) This occurs when light waves come in contact with a surface of a material and bounce off
A
refraction
B
transmission
C
reflection
D
absorption
8) This occurs when light rays travel through the material.
A
absorption
B
reflection
C
transmission
D
refraction
9) If light does not pass through it, the material is
A
trasparent
B
clear
C
opaque
D
translucent
10) If a material allows almost all light that strikes it to pass through and form a clear image, it is
A
opaque
B
transparent
C
traslucent
D
clear
*select an answer for all questions
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