The aim of this interactive demonstration is to introduce the idea of electrical power by examining a range of electrical...
The diagnostic questions can be used to check pupils' understanding of power.
In this activity a solar cell is illuminated with light from a 12 V bulb. The distance from the bulb to the cell is increased...
Going back to the circuit we started with, you can see that the electrical power is calculated by multiplying together the...
It is a very useful exercise for pupils to investigate the power outputs of electrical appliances in and around the home. By...
Drawing on the previous sections, we have seen that it's possible to develop an energy description of electric circuits at a...
This episode considers the ways in which the intensity of radiation decreases with distance from the source.
Recognising and celebrating outstanding contributions to the field of physics education.