1. Plane Mirrors

2. 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.

3. Light travels in a straight line

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

5. 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

6. Mirrors

7. Please draw this …

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

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

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

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

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

13. Smooth, flat surfaces

15. Rough surfaces

16. Uses of plane mirrors

17. 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.

18. Complete lab
Ray box
Ruler
Protractor
Slit mask
Mirror