Interactions of Light unit 5-2
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| Matter that allows ALL light to pass. | Transparent
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| How does light interact with matter? | Light is either REFLECTED, ABSORBED OR BOTH
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| Objects are clearly seen through _______________ materials. | Transparent
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| Matter that allows some light to pass, scatters light. | Translucent
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| Matter that does not let any light pass is ......... | Opaque
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| What type of matter does the most absorption of light? | Opaque
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| The bouncing of light off a surface is called? | Reflection
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| Light reflects better off of __________________ surfaces | Smooth, Shiny
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| ______________ surfaces reflects light in many directions. | Rough
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| Name the two angles of reflected light. | Angle of incidence and reflection
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| During reflection, what is the name of the light going into the surface? | Incidence
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| During reflection, what is the name of the light bouncing off the surface? | Reflection
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| When light strikes an opaque surface, what determined the color we see? | Color reflected
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| When light strikes an opaque, white surface we see what color? | White
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| Why do we see white when light strikes a solid white surface? | All colors are reflected.
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| Why do we see black when light strikes a solid black surface? | All colors are absorbed
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| When light is transmitted through an object what determines the color we see? | The color that passes through the object
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| When light is transmitted through an object what happens to the colors we can not see? | They are absorbed.
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| Besides being absorbed or reflected, name 3 other interactions light waves can have with matter. | Slow, bend and scatter.
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| What means a change in the direction of light as it enters another medium. (Also known as bending light.) | Refraction
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| When light enters a new medium what changes? | Light speed, slows
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| What wavelength of light bends more when as it enters a new medium? | Shorter wavelengths, violet end
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| What wavelength of visible light bends less as it enters a new material. | Longer wavelengths, red end
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| when light hits matter/particles and sends them in many directions it __________________ light. | Scatter
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| What light is scattered the most as it comes in our atmosphere. | Blue
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| Occasionally we have a reddish color sky at sunset, WHY? | At sunset the visible light passed through more atmosphere than normal allowing the longest wavelength of light, RED, to enter.
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| Matter that transmits light is? | Transparent of translucent
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| matter that transmits NO light is? | Opaque
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| Why does the frog in our lesson appear green? | It reflects green color
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| Why does refraction occur? | Due to the change in wave speed.
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