
untitled
Flashcard
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Science
•
5th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the principle that explains why light travels in a straight line?
Back
Light travels in a straight line when there is nothing to interfere with its waves.
2.
FLASHCARD QUESTION
Front
What is the phenomenon called when light bounces off a surface?
Back
Reflection.
3.
FLASHCARD QUESTION
Front
What is the phenomenon called when light changes direction as it passes from one medium to another?
Back
Refraction.
4.
FLASHCARD QUESTION
Front
What causes the lower part of an object to appear different in size when viewed through water?
Back
The refraction of light rays as they travel from water to air.
5.
FLASHCARD QUESTION
Front
What happens to a light ray when it strikes a reflective surface?
Back
It is reflected.
6.
FLASHCARD QUESTION
Front
What is the law that describes the angle of incidence and the angle of reflection?
Back
The law of reflection states that the angle of incidence is equal to the angle of reflection.
7.
FLASHCARD QUESTION
Front
What is the index of refraction?
Back
The index of refraction is a measure of how much light slows down in a medium compared to its speed in a vacuum.
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