Electricity - Investigation 3

Investigate how the brightness of a bulb can be

  1. Made brighter
  2. Dimmed

Produce a report which

  • Clearly sets out your method and the apparatus used

  • Includes a labelled circuit diagram for each experiment

  • Shows the different ways you have found of solving the investigation

  • Has a number of different charts recording your results

  • Has a conclusion explaining your findings

Your circuit needs to contain a switch to control the operations


  • How you are going to make the test fair
  • How you are going to record the brightness of the bulb