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Components with changing resistance
These diagnostic questions and response activities (contained in the zip file) support students in being able to:
- Measure pairs of readings, of current through a component and p.d. across it.
- Use pairs of values, read from an IV-graph, to calculate resistance of a component for a given p.d. across it.
- Interpret an IV-graph to describe how current through a component changes as the p.d. across it increases.
- Interpret an IV-graph to describe how the resistance of a component changes as the p.d. across it increases.
- Explain why the resistance of a filament bulb changes as the p.d. across it increases.
The resources include details of common misconceptions and a summary of the research upon which the resources are based.
Download the zip file for all the questions and activities.
More resources like this can be found on the BEST webpage: Best Evidence in Science Teaching
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