Context for question 2
A student investigates the relationship between the extension of a spring and the mass suspended from the spring.
May/June 2026 Paper 63
0/40 marks
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Context for 2(a)
Figure 2.1 shows the arrangement of the apparatus the student uses.
The student:
- measures the original length of the spring
- attaches a mass of = 10 g to the spring
- measures the new length of the spring
- calculates the extension of the spring
- repeats the procedure using masses of = 20 g, 30 g, 40 g and 50 g.
2(a)(i)Easy1 mark
On Figure 2.1, draw a double-headed arrow () to show the extension of the spring when mass is suspended from the spring.
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2(a)(ii)Easy2 marks
Describe two techniques the student uses to measure accurately the length of the spring.
Your answer
2(b)(i)Easy1 mark
The student’s readings are shown in Table 2.1.
| mass / g | length / cm | extension / cm |
|---|---|---|
| 0 | 1.9 | 0.0 |
| 10 | 2.4 | 0.5 |
| 20 | 2.8 | 0.9 |
| 30 | 3.3 | 1.4 |
| 40 | 3.7 | |
| 50 | 4.2 | 2.3 |
Calculate the extension when a mass of 40 g is suspended from the spring. Use the equation:
Record your value in Table 2.1.
2(b)(ii)Medium3 marks
Plot a graph of extension e / cm (y-axis) against mass m / g (x-axis).
Start the axes from the origin (0,0).
Draw a best-fit straight line.
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2(b)(iii)Medium3 marks
Use your graph to determine the length of the spring when a mass of 12 g is suspended from the spring.
Show clearly on the graph how you obtained the necessary information.
2(c)Easy1 mark
Suggest one safety precaution the student takes when doing the experiment.
Your answer