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1 Ch - Phy Sc M 10

Physics - Light (Apologia Physical Science Module 10)

QuestionAnswer
electromagnetic wave a transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field
law of reflection the angle of reflection equals the angle of incidence
The wave theory of light views light as two transverse waves, one made of an oscillating magnetic field and the other an oscillating electric field.
The particle theory of light views a ray of light as a beam of individual particles called photons.
The quantum mechanical theory of light says that light is both a particle and a wave. It is made up of individual packets that behave like particles, but the packet is actually made up of a wave.
Light waves oscillate a magnetic field AND an electric field.
Einstein's Theory of Special Relativity says that NOTHING with mass can travel faster than the speed of light.
When light is traveling through water and suddenly breaks the surface to travel through air, it travels ___________________ (once it left the water). FASTER
The color with the SMALLEST wavelength is violet. Violet also has the LARGEST frequency.
The color with the LARGEST wavelength is red. Red also has the SMALLEST frequency
Wavelength and frequency are ____________________________ proportional. INVERSELY
Radio waves have _____________ frequencies than visible light. longer
X-rays have _____________ frequencies than visible light. shorter
Human bodies don't glow at night because the infrared light they emit is invisible.
When light travels from one substance to another, it can be reflected OR refracted.
Objects underwater appear to be at a different position than objects above the water because light bends when it travels from air to water.
The sky looks blue on sunny days because blue light scatters much more than other colors of light.
For a rainbow to be seen, there must be water droplets suspended in the air, the sun must be shining on them, and the sun must be at a certain angle or height in the sky.
A converging lens causes light rays to bend so that they CONVERGE to a single point.
diverging lens light rays to bend so that they bend AWAY from each other.
An eye focuses by changing the shape of its lens.
A camera focuses by moving the position of the lens.
A shirt dyed to appear violet ABSORBS ALL colors EXCEPT violet.
Created by: MrsHough
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