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Review Game on Electromagnetic Waves and Light

Review concepts and vocabulary in Chapters 3 and 4 on electromagnetic waves and light.

Electromagnetic WavesDisturb electric and magnetic fields
Electromagnetic WavesCan travel in a vacuum and do not require a medium
FrequencyIncreases as you move across the electromagnetic spectrum
WavelengthDecreases as you move across the electromagnetic spectrum
Radio wavesType of waves used primarily for communication and have the longest wavelength and lowest frequency
Visible LightWaves which allow us to see
RedColor in visible spectrum which has the longest wavelength
VioletColor in visible spectrum which has the shortest wavelength
InfraredWaves which can be felt as heat
UV raysWaves which cause us to tan in the summer and can give us skin cancer
X raysWaves used to see if a bone is broken
Gamma RaysWaves with the highest frequencies and shortest wavelengths
300 million meters/secondSpeed of light and electromagnetic waves
Ray Model of LightLight rays travel in straight lines
ShadowForms when opaque objects get in front of a beam of light
Reflected, Absorbed, or TransmittedThree things that can happen to light when it strikes a surface
ReflectionBouncing back of light
Law of ReflectionAngle of incidence equals the angle of reflection
Regular reflectionProduced when light rays bounce off a smooth surface
Diffuse reflectionProduced when light rays bounce off a rough or irregular surface
MirrorSmooth reflecting surface made of glass coated with silver
Plane, Concave, and ConvexThree types of mirrors
PlaneFlat mirror which produces an image which is right side up and about the same size as the object.
ConcaveType of mirror which curves inward
ConcaveMirror used in headlights, flashlights, and search lights
ConcaveLight rays are reflected into a point in front of the mirror called the focal point
ConvexType of mirror which curves outward
ConvexMirror used in rearview and sideview mirrors and for security in stores
RefractionBending of light waves
Why does refraction occur?Light waves are traveling between two different mediums of two different densities
Colors of the visible spectrumVisible when white light or visible light is refracted
TransparentType of material which transmits light and produces a clear, detailed image
TranslucentType of substance which transmits light, but DOES NOT provide a clear detailed image
OpaqueType of substance which DOES NOT transmit light
Colors which are reflectedColors "we see" off opaque objects
Colors which are absorbedColors "we DO NOT see" off opaque objects
White LightReflects all the colors of visible light/and reflects heat
BlackAbsorbs all the colors of visible light/and absorbs heat
RainbowProduced when white light is refracted through water or glass

8th Grade Science Teacher
Pearl R. Miller Middle School

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