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What do you know about Mirrors? 1.We see objects because _____. a. light is reflected off of objects b. objects generate their own light c. both A and B 2. Possible shape(s) of mirrors are ___. a. Flat b. Concave c. Convex d. All of the above
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3. Convex mirrors cause light to ____. a. reflect up only b. diverge (spread) apart c. reflect down only 4. Concave mirrors cause light to ___. a. diverge (spread) apart b. reflect straight c. converge to a focal point
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5.Which two rules are NOT true about reflection? a. light travels in a straight line b. reflection is in an unpredictable pattern c. Angles of incidence and reflection are determined by the curve of the mirror
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What do you know about lenses? 6.Refraction of light is _____. a. Change in direction b. change in speed c. Both A and B 7. Light travels faster in ____. a. air b. water c. no difference 8. Eye glasses work because they _____. a. change the speed of light b. change direction of light c. Both A and B
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9.Telescopes are _____. a. magnification of light b. both magnification and reflection of light c. reflecting with mirrors 10. Prisms break light into ____. a. dominant and recessive colors b. seven colors of the rainbow c. light colors vs. dark colors
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Light Fact 1: Light always travels in straight lines
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Light is energy that travels in waves of different wavelengths. Light Fact 2:
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Light Fact 3: The different wavelengths create the energy we know as X-rays, Ultraviolet, Visible, Infrared, Microwaves and Radio waves.
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Light Fact 4: The reflection of light from surfaces allows us to see objects that do not emit their own light.
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Light Fact 5: When charged particles from the sun are captured by the Earth’s magnetic field it creates an effect we call the AURORA BOREALIS or Northern Lights
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Light Fact 6: Convex mirrors cause waves to diverge Note that these behave as if there is a focus behind the mirror, called a virtual image
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Light Fact 7: Only a convex lens can form a real image. Real images are inverted and smaller than the actual image
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Learn more about Mirrors!
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Learn More about Lenses!
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NOW, what do you know about Mirrors? 1. We see objects because _____. a. light is reflected off of objects b. objects generate their own light c. Both A and B 2. Possible possible shape(s) of mirrors are ___. a. Flat b. Concave c. Convex d. All of the above
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3. Convex mirrors cause light to ____. a. reflect up only b. diverge (spread) apart c. reflect down only 4. Concave mirrors cause light to ___. a. diverge (spread) apart b. reflect straight c. converge to a focal point
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5. Which two are not rules about reflection? a. light travels in a straight line b. reflection is in an unpredictable pattern c. Angles of incidence and reflection are determined by the curve of the mirror
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What do you know about lenses? 6.Refraction of light is _____. a. Change in direction b. change in speed c. Both A and B 7. Light travels faster in ____. a. air b. water c. no difference 8.Eye glasses work because they _____. a. change the speed of light b. change direction of light c. Both A and B
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9.Telescopes _____. a. magnify light b. both magnify and reflect of light c. reflect light 10. Prisms break light into ____. a. dominant and recessive colors b. seven colors of the rainbow c. light colors vs. dark colors
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