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