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14 Cards in this Set
- Front
- Back
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If all colours are absorbed what color will you see |
Black |
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If all colours are reflected what color will you see? |
White |
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Convex lens |
Converge |
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Concave lens |
Diverge |
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2 uses of convex lenses |
Magnifying glass, glasses |
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2 uses of concave lenses |
Peephole in a door |
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Transparent means... |
Allows light to pass through |
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Translucent means.. |
Allow only some light through |
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300 000 000 mp s-1 |
Speed of light |
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As light enters an optically denser medium the light... |
slows down and bends inwards towards the normal |
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As light enters an optically LESS dense medium... |
The light rays speed up and bend away from the normal |
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If light enters or exits at right angles |
It speed changes but there is no change of direction |
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Sound is made by... |
Vibrations |
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What is the rule of reflection? |
The angle of incidence is ALWAYS equal to the angle of reflection |
