**Paper 2 H - SAMPLE SET 1 Q1 ****Answers**

1) A student suspended a spring from a laboratory stand and then hung a weight from the spring.

**Figure 1**shows the spring before and after the weight is added.1.1) Measure the extension of the spring shown in

**Figure 1**. [1 mark]

Extension = _________ mm

The student used the spring, a set of weights and a ruler to investigate how the extension of the spring depended on the weight hanging from the spring.

Before starting the investigation the student wrote the following prediction:

Before starting the investigation the student wrote the following prediction:

The extension of the spring will be directly proportional to the weight hanging from the spring. |

**Figure 2**shows how the student arranged the apparatus.

1.2) Before taking any measurements, the student adjusted the ruler to make it vertical.

Explain why adjusting the ruler was important. [2 marks]

The student measured the extension of the spring using a range of weights.

The student’s data is shown plotted as a graph in

Explain why adjusting the ruler was important. [2 marks]

The student measured the extension of the spring using a range of weights.

The student’s data is shown plotted as a graph in

**Figure 3**.1.3) What range of weight did the student use? [1 mark]

1.4) Why does the data plotted in

1.5) Describe

1.6) The student continued the investigation by increasing the range of weights added to the spring.

All of the data is shown plotted as a graph in

1.4) Why does the data plotted in

**Figure 3**support the student’s prediction? [1 mark]1.5) Describe

**one**technique that you could have used to improve the accuracy of the measurements taken by the student. [2 marks]1.6) The student continued the investigation by increasing the range of weights added to the spring.

All of the data is shown plotted as a graph in

**Figure 4**.At the end of the investigation, all of the weights were removed from the spring.

What can you conclude from

Give the reason for your conclusion.

What can you conclude from

**Figure 4**about the deformation of the spring? [2 marks]Give the reason for your conclusion.

**(Total for Question 1 = 9 marks)**