GCSE Physics equations practice
Select a relationship from the equation sheet, rearrange it and calculate with the right units.
GCSE Physics graph questions
Read scales, plot coordinates and interpret straight-line gradients and intercepts.
Practise
Choose a best-fit lineChoose the line that best represents the trend. Calculate its gradient in cm s⁻¹. Give your answer to 3 significant figures.
Larger graph
Graph values
| Point | Time / s | Position / cm |
|---|---|---|
| 1 | 1 | 7.2 |
| 2 | 2 | 10.6 |
| 3 | 3 | 15.2 |
| 4 | 4 | 18.8 |
| 5 | 5 | 23.4 |
| 6 | 6 | 26.8 |
- Line A: (0, 1.8) to (7, 29.8).
- Line B: (0, 3) to (7, 31).
- Line C: (0, 4.2) to (7, 32.2).
Treat the displayed values as exact unless an uncertainty is stated.
Hint
A best-fit line need not pass through every point. Use two well-separated positions on the line to calculate Δy / Δx.
Worked solution
- Rule: Line B.
- Line B balances the points above and below; the other lines are displaced vertically.
- Two positions on line B: (0 s, 3 cm) and (7 s, 31 cm).
- Gradient = (31 − 3) / (7 − 0) = 4 cm s⁻¹.
- Answer: 4.00 cm s⁻¹ (3 significant figures).
Question type: Mixed practice
Report a problem
Foundation and Higher: this set covers content common to both tiers. Some calculations need several steps.
Reading a graph
Read the axis quantities and units before calculating. Use two well-separated points on the supplied line for a gradient. The gradient’s meaning comes from the axes: displacement divided by time gives velocity; potential difference divided by current gives resistance. These tasks use straight lines and coordinate entry; tangents and areas under curves are outside this set.
Work through the practical method and sample results
GCSE scope
AQA 8463: MS 4a–d; 4.5.6.1.4; 4.2.1.4; OCR Gateway J249: 5g M4a–d; P2.1; P3.2; P9. Tasks cover the selected skills listed above.