7 marksFoundation and Higher6.5.4.2.2 Newton's Second Law6.5.4.1.5 Acceleration
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.4.2.2
Spec 6.5.4.1.5
Original practice question
Answer and supported method checks
A skydiver of mass 75 kg jumps from a plane.
Gravitational field strength = 9.8 N/kg.
.1
At one moment the air resistance on the skydiver is 285 N. Calculate the acceleration of the skydiver at this moment.
[3 marks]
.2
Explain why the skydiver reaches a terminal velocity.
[4 marks]
5 marksFoundation and HigherRequired practical 186.5.3 Forces and elasticity
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.3
Original practice question
Answer and supported method checks
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]
8 marksFoundation and Higher6.6.2.3 Properties of electromagnetic waves 26.6.2.4 Uses and applications of electromagnetic waves
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.6.2.3
Spec 6.6.2.4
Original practice question
Answer and supported method checks
Hospitals use X-rays to form images of the inside of the body. A CT scan uses X-rays from many directions. The table shows some typical radiation doses.
Typical radiation dose in millisieverts: one chest X-ray 0.02; one CT scan of the chest 7.0; background radiation in one year, UK average, 2.7.
Source of radiation
Typical dose in mSv
One chest X-ray
0.02
One CT scan of the chest
7.0
Background radiation in one year (UK average)
2.7
.1
Calculate how many chest X-rays give the same dose as one CT scan of the chest.
[2 marks]
.2
Calculate the dose from one CT scan of the chest as a percentage of the yearly background dose.
[2 marks]
.3
A patient has had a cough for several months. Evaluate the use of a CT scan of the chest to find the cause.
[3 marks]
.4
Give one harmful effect of ultraviolet radiation on the human body.
[1 mark]
7 marksFoundation and Higher6.6.1.2 Properties of waves6.6.1.1 Transverse and longitudinal waves
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.6.1.2
Spec 6.6.1.1
Original practice question
Answer and supported method checks
Waves travel across a pond. A floating leaf moves up and down 5 times in 2.0 s. The distance between neighbouring crests is 0.40 m.
.1
Calculate the frequency of the waves.
[1 mark]
.2
Calculate the speed of the waves.
[2 marks]
.3
Calculate the period of the waves.
[2 marks]
.4
The leaf moves up and down but does not travel across the pond with the waves.
Explain what this shows about the waves.
[2 marks]
4 marksFoundation and Higher6.5.2 Work done and energy transfer
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.2
Original practice question
Answer and supported method checks
A box is dragged across a rough floor with a constant force of 150 N. 4500 J of work is done.
.1
Calculate the distance the box moves.
[2 marks]
.2
The bottom of the box and the floor get slightly warmer. Explain why.
