A student hangs weights on a spring and measures its length each time.
Spring results. Weight added in newtons and total length in centimetres: 0 N, 20.0 cm; 1.0 N, 22.5 cm; 2.0 N, 25.0 cm; 3.0 N, 28.5 cm; 4.0 N, 30.0 cm; 5.0 N, 32.5 cm.
Weight added (N)
Length of spring (cm)
0
20.0
1.0
22.5
2.0
25.0
3.0
28.5
4.0
30.0
5.0
32.5
.1
Calculate the extension of the spring when the weight is 4.0 N.
[1 mark]
.2
Identify the anomalous result. Give the weight.
[1 mark]
.3
Use the other results to calculate the spring constant in N/m.
[2 marks]
.4
Suggest one way the student could make the length readings more accurate.
[1 mark]
6 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A student measures the resistance of a length of wire. The diagram shows the correct circuit.
RAV
.1
How is the voltmeter connected to the wire R?
[1 mark]
.2
The voltmeter reads 3.0 V. The ammeter reads 150 mA.
Calculate the resistance of the wire.
[3 marks]
.3
The student switches the circuit off between readings. Suggest why.
[2 marks]
5 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
The graph shows how the distance travelled by a cyclist changes with time.
05101520253020406080100Time (s)Distance (m)
.1
Determine the speed of the cyclist during the first 10 s.
[2 marks]
.2
Describe the motion of the cyclist between 10 s and 20 s.
[1 mark]
.3
Calculate the average speed of the cyclist for the whole 30 s.
[2 marks]
5 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A block of ice is heated at a steady rate. The graph shows how its temperature changes.
