Light Waves End of unit test
Authored by M Joshi
Physics, Science
8th Grade
NGSS covered
Used 41+ times
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46 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What word is used to describe when light changes direction as it travels through a new medium?
refraction
diffraction
Reflection
distraction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What word is used to describe what light bounces off an object?
diffraction
refraction
distraction
reflection
Tags
NGSS.MS-PS4-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the angle of incidence is 40 degrees, what will the angle of reflection be?
35 degrees
20 degrees
40 degrees
80 degrees
Tags
NGSS.MS-PS4-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name given to the line 90 degree from the mirror or block?
Normal line
Northern line
Necessary line
Known line
Tags
NGSS.MS-PS4-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An object that gives out light is...
shiny
luminous
bright
non-luminous
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
We don't see a reflection in paper because...
light is scattered
light is absorbed
light disappears
light isn't reflected
Tags
NGSS.MS-PS4-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we draw light rays with a ruler?
It is clearer on diagrams
It is neater
Light travels in a straight line
It is more accurate
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