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15
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What is a medium in terms of light?
The material that light travels through, such as air, water, or glass.
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15
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How does a convex lens affect light rays?
It makes them converge (come together) at a focal point.
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What is the difference between reflection and refraction?
Reflection is when light bounces off a surface, while refraction is when light bends as it passes through a different medium.
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seesaw
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shark
Other team loses 10 points!
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fairy
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thief
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eraser
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seesaw
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gift
Win 20 points!
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lifesaver
Give 5 points!
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15
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What causes optical illusions related to water?
Refraction, because light bends as it passes from air to water, making objects look different.
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15
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What happens to light when it moves from water into air?
It speeds up and bends away from the normal.
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What is refraction?
Refraction is when light changes direction as it passes from one medium to another.
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15
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How does refraction help magnifying glasses work?
The convex lens bends light to make objects appear larger.
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How is refraction useful in eyeglasses?
Lenses bend light to help focus images correctly on the retina.
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What is the focal point of a convex lens?
The point where refracted light rays meet.
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15
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Give an example of refraction in everyday life.
A straw appearing bent in a glass of water.
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Why does light refract when it enters a different medium?
Because light travels at different speeds in different materials.
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What happens to light when it passes through a convex lens?
It bends inward and focuses to a point.
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thief
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magnet
Take 20 points!
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fairy
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thief
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banana
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magnet
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rocket
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thief
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