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.