1. Assessed practical: Resistance of a wire
Describe factors that affect resistance of a wire.
Complete a practical to investigate a factor that affects resistance of a wire.
Analuse data and make conclusions for an investigation.

2. Investigating resistance of a wire. (Home-work)
How could we investigate how length affects the resistance of a wire?
Write a method to investigate how resistance of a wire changes with length.
Include: labelled circuit diagram, equipment list, Independent, dependent and control variables, method (step by step), and risk assessment.
Draw a graph and write a conclusion of what you have found out.
What affected the accuracy of your results? Consider all measurements and suggest improvements if you were to do practical again.