6 marksFoundation and Higher6.4.2.4 Radioactive contamination
AQA Trilogy 8464
Spec and skills
Paper scope: P1
Spec 6.4.2.4
Original practice question
Answer and supported method checks
A worker is near a sealed radioactive source for a short time. Another worker has radioactive dust on a glove. A supervisor recommends tongs, shielding and careful removal of the contaminated glove.
Explain the different hazards and how the precautions reduce them.
[6 marks]
6 marksFoundation and HigherRequired practical 176.3.1.1 Density of materials
AQA Trilogy 8464
Spec and skills
Paper scope: P1
Spec 6.3.1.1
Original practice question
Answer and supported method checks
A student must determine the density of an irregular metal nut that sinks in water and does not dissolve. The nut fits fully inside a measuring cylinder.
Plan a method that measures density and controls the main measurement errors.
[6 marks]
4 marksHigher6.3.2.3 Changes of state and specific latent heat
AQA Trilogy 8464
Spec and skills
Paper scope: P1
Spec 6.3.2.3
Original practice question
Answer and supported method checks
A heater supplies 12000 J to 0.10 kg of ice already at 0 °C. The specific latent heat of fusion is 334000 J/kg. Assume no energy reaches the surroundings.
.1
Calculate the mass of ice that melts.
[2 marks]
.2
Evaluate the statement that the final temperature must be above 0 °C because energy was supplied.
[2 marks]
5 marksFoundation and Higher6.2.2 Series and parallel circuits
AQA Trilogy 8464
Spec and skills
Paper scope: P1
Spec 6.2.2
Original practice question
Answer and supported method checks
A student builds a circuit with a 9.0 V supply, a 10 Ω resistor and a 20 Ω resistor in series. The ammeter reads 0.30 A. The student writes: “The 20 Ω resistor uses twice as much current as the 10 Ω resistor.”
.1
Calculate the potential difference across the 10 Ω resistor.
[2 marks]
.2
Evaluate the statement using current conservation and energy transfer.
[3 marks]
6 marksHigher6.2.4.3 The National Grid
AQA Trilogy 8464
Spec and skills
Paper scope: P1
Spec 6.2.4.3
Original practice question
Answer and supported method checks
A town receives electricity from distant power stations through the National Grid. A pupil proposes removing all transformers because transformers do not create energy.
Evaluate the proposal by explaining the roles of the transformers and the cables.
