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Ch. 14 Vocab

Physical Science

TermDefinition
Coherent light Light of a single wavelength . Travels with its crests and troughs aligned in the same direction.
Concave lens Diverges light rays to form reduced upright virtual images.
Convex lens Converges light rays.
Cornea Transparent covering on eyeball.
Focal point Single point on optical axis of a concave mirror/convex lens where light rays press through.
Incoherent light Light that has more than than 1 wavelength and does not travel with its crests and troughs aligned in same direction.
Index of refraction Property of a material indicating how much light slows when traveling in a material.
Mirage Image of a distant object. Results when air at ground level is warmer/cooler than air layers above it.
Opaque Material that absorbs/reflects all light.
Pigment Colored material that absorbs some color and reflects other.
Polarized light Light where transverse waves vibrate in 1 direction.
Retina Inner lining of the eye that has cells that convert light images to electrical signals.
Total internal reflection Occurs when light strikes a surface between 2 materials. Completely reflects back into first material.
Translucent Material that allows some light to pass through but not enough to see clearly.
Transparent Material that lets all light through so it can be seen clearly.
Fluorescent light Light that results when UV radiation produced in fluorescent bulb.
Incandescent light Light produced by heating a piece of metal, usually tungsten, until it glows.
Created by: AmberGenson