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LightMade by: Gilbert Vincenta
Grade 7
IntroductionLuminous: Objects that emit lightNon-luminous: Can only be seen if they are
reflecting light from a luminous source. Rays: Smaller lines of light.
Classifying Non-Luminous ObjectNon-luminous materials can be classified as
transparent, translucent, or opaque according to the way light behaves when it meets them.
ShadowsShadow = Region without light.Shape of the shadow may not identical to the
shape of the object.
Studying ReflectionsIncident rayReflected rayNormalAngle of incidenceAngle of reflectionPlane mirrorImage
ImagesThere are 2 kinds of images: Real images and
virtual images.
The PeriscopeThe combined of the 2 plane mirrors.
SurfacesThere are 2 types of surfaces: Smooth
surfaces and rough surfaces.
Refraction & DispersionBending of the light ray is called refraction.Dispersion is the process in which the
wavelengths that travels at slightly different speeds and are spread out.
The Rainbow
ColoursThere are 3 main colours : Blue light, red
light, and green light.These 3 main colours are combined to
produce a new colour in a different proportion for every new colour.