Science - Physics - Light


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LightA form of energy
Solar CellSource of power for some calculators and garden lights
Luminous bodyProduces its own light
Non-luminous bodyDoes not produce its own light
DispersionThe breaking of white light into seven colours
ReflectionLight bouncing off an object
RefractionThe bending of light going through a lens
RayVery narrow beam of light
PeriscopeInstrument used for viewing objects out of sight
Spectrum or rainbowRed, orange, yellow, green, blue, indigo, violet
Solar panel solar1.gifConverts light energy to heat energy & may be found on roofs
TransparentAllows light through
OpaqueDoes not allow light through
Solar eclipseIt occurs when the moon passes between the sun and the earth
PeriscopeFound in submarines and can be used to see above the surface of the water
Lens lens.gifA piece of glass that has at least one curved surface
Red, orange, yellow, green, blue, indigo and violetThe seven colours of the rainbow/spectrum
MirageRefraction of light on a hot sunny day
Our main source of light and energySun