Plane Mirrors

Learning goals We are learning the parts of a plane mirror. We are learning how mirrors form images. We are learning the laws of reflection.

Light travels in a straight line

Light ray A line and arrow representing the direction and straight-line path of light

Flat Mirrors Image: Mirror A reproduction of an original object that is produced through the use of light Mirror A polished surface reflecting an image

Mirrors

Please draw this …

Incident ray The incident ray is the light ray travelling toward the mirror or other surface.

Reflected ray The reflected ray is the light ray that has “bounced” off a reflecting surface.

The normal The normal is a line that is perpendicular to a surface such as a mirror.

Angle of incidence The angle of incidence (i ) is the angle between the incident ray and the normal.

Angle of reflection The angle of reflection (r) is the angle between the reflected ray and the normal.

Smooth, flat surfaces

Rough surfaces

Uses of plane mirrors

Learning goals We are learning the parts of a plane mirror. We are learning how mirrors form images. We are learning the laws of reflection.

Complete lab Ray box Ruler Protractor Slit mask Mirror