Class practical: The demonstration models the process of sampling an analogue signal at regular intervals in order to encode...

Practical Activity 14-16

Class practical: Students derive the wave equation, by closely observing ripples in a ripple tank.

Practical Activity 14-16

The hand stroboscope is a disc of hardboard or card with a simple pivot at its centre, so that the disc can be kept spinning...

Teaching Guidance 14-16