Learning goals We are learning the types of reflection. We are learning the laws of reflection. We are learning to draw images in plane mirrors.
terminology Ray Diagrams: show rays of light that an observer sees. Only a few representative rays are drawn Light Ray: line representing the direction and path that light is travelling
Reflection: light bouncing off a non-luminous object Regular/Specular: light reflects off a smooth surface Image is clear Ex. Smooth water
Diffuse Reflection: light reflects off a rough surface Difficult to predict where the light will reflect Image is blurred Ex. Rough water
Mirrors
Terminology of Reflection MIRROR
Terminology of Reflection NORMAL
Terminology of Reflection NORMAL Incident Ray
Terminology of Reflection NORMAL Incident Ray Angle of incident
Terminology of Reflection NORMAL Incident Ray Angle of incident Reflected Ray
Terminology of Reflection NORMAL Angle of reflection Incident Ray Angle of incident Reflected Ray
Laws of reflection 1. The angle of incidence equals the angle of reflection.
Laws of reflection 2. The incident ray, the reflected ray, and the normal all lie in the same plane.
Describing an image
Learning goals We are learning the types of reflection. We are learning the laws of reflection. We are learning to draw images in plane mirrors.
Please complete P481 #3,5 P486 #2,5