Using lenses to form images
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| Concave lens | lens thinner in the middle than at the edges
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| convex lens | lens thicker in the middle than at the edges
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| diverge | light rays go out
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| converge | light rays come together
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| if parallel light rays are shone on a concave lens, they will refract so that they ________ | diverge
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| on a concave lens, the image is always _____________ and ____________ than the object | upright and smaller
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| concave lenses are used in eyeglasses for _____sighted people | near
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| if parallel light rays are shone on a convex lens, they will refract so that they _______ | converge
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| on a convex lens, if the object is far away from the lens, the image will be ________ and __________ than the object | upside down and smaller
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| on a convex lens, if the object is 1-2 focal lengths, the image is __________ than the object (still ____________ - upside down or upright) | bigger, upside down
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| for a convex lens, if the object is closer to the lens than 1 focal length, the image is _______ and ______ than the object | upright and larger
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| convex lenses are used in: | reading glasses, magnifying glasses, telescopes, microscopes, binoculars, and cameras
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