5 marksFoundation and Higher6.6.2.1 Types of electromagnetic waves6.6.2.2 Properties of electromagnetic waves 16.6.2.3 Properties of electromagnetic waves 26.6.2.4 Uses and applications of electromagnetic waves
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.6.2.1
Spec 6.6.2.2
Spec 6.6.2.3
Spec 6.6.2.4
Original practice question
Answer and supported method checks
An imaging leaflet gives typical effective doses: one chest X-ray 0.020 mSv and one CT examination 4.0 mSv. These values are supplied; you do not need to recall dose units.
.1
Calculate the number of chest X-rays giving the same listed total dose as one CT examination.
[2 marks]
.2
Explain why the dose comparison alone cannot decide whether a patient should have the CT examination.
[3 marks]
6 marksHigher6.7.2.2 Fleming's left-hand rule6.7.2.3 Electric motors
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.7.2.2
Spec 6.7.2.3
Original practice question
Answer and supported method checks
A simple motor has a rectangular current-carrying coil between two magnet poles. A student suggests increasing current, using stronger magnets and making the active sides parallel to the magnetic field to increase rotation.
Evaluate these suggestions using the motor effect. Explain the role of the two sides of the coil.
A road-safety trial compares two drivers. Driver A is alert on worn tyres; driver B is tired on new tyres. Both drive at the same speed on the same road. Only their final stopping distances are recorded.
Evaluate whether this trial can show how tiredness affects stopping distance. Explain a better investigation that avoids driving while tired.
[6 marks]
5 marksHigher6.5.4.1.5 Acceleration6.5.4.2.1 Newton's First Law6.5.4.2.2 Newton's Second Law
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.4.1.5
Spec 6.5.4.2.1
Spec 6.5.4.2.2
Original practice question
Answer and supported method checks
Two proposed motion records describe a cart moving in one direction. Record A: velocity rises uniformly from 0 to 8 m/s in 4 s, then remains 8 m/s for 2 s. Record B: velocity remains 4 m/s for 6 s.
.1
Calculate how much farther the cart travels in record A than in record B.
[3 marks]
.2
Evaluate the statement: "Both records last six seconds, so their distances are equal."
[2 marks]
4 marksFoundation and Higher6.5.4.1.1 Distance and displacement6.5.4.1.2 Speed6.5.4.1.3 Velocity6.5.4.1.4 The distance–time relationship
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.4.1.1
Spec 6.5.4.1.2
Spec 6.5.4.1.3
Spec 6.5.4.1.4
Original practice question
Answer and supported method checks
A light pulse and a sound pulse leave the same device simultaneously. The observer is 680 m away. Take sound speed as 340 m/s and light speed as 3.0×108 m/s.
.1
Calculate the travel time of the sound.
[2 marks]
.2
Explain why timing from the visible flash to the sound is a reasonable way to measure the sound travel time here.
