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37 Cards in this Set
- Front
- Back
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Name an instrument that enlarges tiny objects.
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microscope
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Name an instrument that enables people to see distant objects.
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telescope
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What kind of mirror bulges away from the viewer like the inside of a spoon and scatters light rays?
Isaac Newton's reflecting telescope used this type of mirror and a convex lens. Be able to identify! |
concave
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What kind of mirror bulges toward the viewer like the back of the spoon and refracts light?
Be able to identify! |
convex
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What do we call man-made light?
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artificial light
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What do we call God-made light?
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natural light
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When sunlight is separated into the six color bands we have a ______.
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spectrum
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Something that gives off light is ________.
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luminous
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What is the extra layer of cells behind the retina of many nocturnal animals called?
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tapetum
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What kind of eyes do insects have?
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compound eyes
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What is a piece of glass that creates a spectrum called?
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prism
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What is the ability to do work called?
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energy
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What kind of object allows light to pass through it completely?
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transparent
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What is the term that means bending light?
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refraction
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What is the term that means bouncing back light?
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reflection
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How fast does light travel?
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186,000 MPS
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Who invented the light bulb?
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Thomas Edison
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How does light always travel?
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In a straight line
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What color is an object that reflects all the colors of the spectrum?
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white
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What color is an object that absorbs all the colors of the spectrum?
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black
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What color light is a mixture of all the colored lights?
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White
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What kind of object does not allow light to pass through it?
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opaque
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What kind of object diffuses or scatters the light as it passes through?
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translucent
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What is a spot of darkness cast by an opaque object?
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a shadow
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What is the large bundle of fibers that carries a message from the eye to the brain?
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optic nerve
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What is the muscle that changes the size of the pupil?
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iris
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What is the opening that allows light to enter the eye?
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pupil
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What is the outer, transparent layer that covers and protects the front of the eye?
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cornea
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What is lining made of light sensitive cells that covers the inside of the eyeball?
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retina
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What part of the eye is right behind the pupil and focuses the light?
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lens
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What kind of vision allows two eyes to work together to see one object?
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binocular vision
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What kind of lens is thicker in the middle?
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convex
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What travels faster than anything else scientists can measure?
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light
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If you have trouble seeing distant things you are __________.
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near-sighted
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If you have trouble seeing close things you are __________.
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far-sighted
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The kind of vision some animals have that allows them to move their eyes independently and to see things in two different directions at once is called ___________.
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monocular vision
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Who created light?
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God
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