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]
6 marksFoundation and Higher6.5.4.1.5 Acceleration6.5.4.2.1 Newton's First Law6.5.4.2.2 Newton's Second Law6.5.4.2.3 Newton's Third 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
Spec 6.5.4.2.3
Original practice question
Answer and supported method checks
A parachutist has reached a first terminal velocity before opening a parachute. Consider the motion from just before opening until a new terminal velocity is reached.
Explain the changes in resultant force, acceleration and speed throughout this sequence.
[6 marks]
6 marksFoundation and Higher6.7.2.1 Electromagnetism
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.7.2.1
Original practice question
Answer and supported method checks
An engineer needs an electromagnet that lifts a metal latch reliably but does not overheat during repeated use. The design can change current, number of turns and core material.
Plan tests to compare designs and explain the scientific reasons for the measurements and controls.
[6 marks]
6 marksHigherRequired 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 manufacturer claims a rubber luggage strap is more suitable than a steel spring for repeated stretching under load. A fair comparison must use the same maximum applied force and check whether each sample returns to its original length.
Plan an investigation to compare how extension depends on force for the strap and spring, and test whether they recover their original lengths after repeated loading.
[6 marks]
6 marksHigher6.5.1.3 Gravity
AQA Trilogy 8464
Spec and skills
Paper scope: P2
Spec 6.5.1.3
Original practice question
Answer and supported method checks
A lifting device measures the weight of several masses on a planet. Results are 6 N for 2 kg, 15 N for 5 kg and 24 N for 8 kg. Measurements pass through the origin on a weight-mass graph.
01234567891051015202530Mass (kg)Weight (N)
.1
Calculate the gravitational field strength on the planet.
[2 marks]
.2
Calculate the mass of an object that weighs 42 N there.
[2 marks]
.3
Explain why using several masses supports the result more than using one reading.
