Page 101 - Big Ideas Year 9 sciPAD 2025

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SCIPAD - BIG IDEAS - BOOK 1
THE IMPORTANCE OF WAVES
Curved Mirrors
There are three main types of mirrors in the laboratory. Plane mirrors are flat, convex and concave
mirrors are both curved mirrors.
Concave Mirrors
Concave mirrors have the shiny surface on
the inside of the curve. When looking at a
tablespoon, the bowl of the spoon is concave.
Convex Mirrors
Convex mirrors have the shiny surface on
the outside of the curve. When looking at a
tablespoon, the back of the spoon is convex.
Observing Reflection in Curved Mirrors
Aim: To investigate the reflection of light rays in concave and convex mirrors.
Equipment: Ray box, triple-slit ray slide, concave and convex mirrors, power supply.
Method: 1. Set up your ray box, triple-slit ray slide and power supply.
2. Place the mirrors on your book as indicated below. Place the ray box at the top of
the page and shine the 3 rays of light at the mirror.
3. Ensure that the middle ray of light is hitting the mirror in the centre.
4. Carefully trace the direction of the three incident rays and the three reflected rays.
LIGHT SOURCE GOES HERE
Concave Mirror
LIGHT SOURCE GOES HERE
Convex Mirror
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