This exam focus covers Exam Focus within Resistance & Ohm's Law for GCSE Physics. Revise Resistance & Ohm's Law in Electricity for GCSE Physics with 14 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 14 of 16 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 14 of 16
Practice
14 questions
Recall
30 flashcards
🎯 Exam Focus
Exam Favourite
Resistance and Ohm's Law appears in virtually every GCSE Physics exam paper. V-I graphs are a classic "describe and explain" question type.
What examiners love to ask:
- Calculate resistance, voltage or current using V = IR
- Describe and explain the V-I graph for a filament lamp
- Compare V-I graphs of ohmic and non-ohmic components
- Explain how resistance of a metal changes with temperature
- Describe how resistance of a thermistor changes with temperature
- State one use of a thermistor or LDR
- Explain the required practical method for resistance of a wire