Worksheet with practice questions for calculating total resistance for combinations of resistors in series and parallel. The worksheet gets progressively harder.

Lens diagram sheets on squared paper for students to practice drawing. 3 sheets; convex real images, convex virtual images and concave images (5 diagrams on each). Includes a key terminology table for students to describe their images using the correct key words. Also includes common “trip-ups”, e.g. object on the other side of the lens, providing only 2f, object bigger than the lens.