AQA · GCSE · Physics

Electricity

01.4 · 1 mark Current and potential-difference relationship Name the type of relationship between current and potential difference for a resistor at constant temperature. 01.2 · 1 mark Resistance and current in a circuit How did increasing the resistance affect the current in the circuit? 06.2 · 2 marks Comparing currents in parallel branches Compare the currents I$_1$, I$_2$ and I$_3$ 06.4 · 6 marks LDR potential-divider meter readings The student builds a different circuit. Figure 11 shows the circuit. Explain how the readings on both meters change when the...

AQA · GCSE · Physics

Energy

05.1 · 2 marks Electrical heating in a kettle element The heating element of the kettle was connected to the mains supply. Explain why the temperature of the heating element increased. 05.3 · 1 mark Explaining a non-zero graph intercept Suggest why the line on Figure 5 does not go through the origin. 03.4 · 2 marks Comparing low- and high-resistance cables The cable used to connect the car to the mains electricity supply has a low resistance. Explain why it is better to use a cable... 05.4 · 1 mark Non-linear kettle heating results Suggest why the results give a non-linear pattern. 05.3 · 3 marks Energy-store changes in a gas boiler Figure 8 shows the gas boiler used to heat the house. Describe how different energy stores are changed by the boiler. 05.1 · 3 marks Wall insulation and heat transfer Explain how the wall reduces unwanted energy transfers.

AQA · GCSE · Physics

Atomic structure

06.3 · 2 marks Measured count rate and source activity Activity is the rate at which a radioactive source decays. A teacher measured the count-rate from a sample of lanthanum-140... 06.2 · 1 mark Detecting gamma radiation Why is it difficult to detect gamma radiation? 04.1 · 1 mark Meaning of alpha particle What is an alpha particle? Tick one box. 04.4 · 4 marks Half-life and changing isotope risk A soil sample was taken from the area around Chernobyl in 1986 The soil sample was contaminated with equal amounts of...

AQA · GCSE · Physics

Control variables

05.2 · 1 mark Control variables in a kettle investigation Give one variable that the student should have controlled.

AQA · GCSE · Physics

Particle model of matter

02.4 · 6 marks Cooling argon particle model Explain the changes in the arrangement and movement of the particles of the argon as the temperature of the air decreased. 03.6 · 1 mark Air volume after release What happens to the volume of the air when it is released from the canister?

AQA · GCSE · Physics

Uncertainty

02.3 · 2 marks Uncertainty from repeated density measurements The student is given a piece of a different plastic material. The student determined the density of the material three times....

AQA · GCSE · Physics

Density practical

02.1 · 6 marks Density of the object calculation Plan an experiment that would allow the student to determine the density of the object.

AQA · GCSE · Physics

Forces

03.1 · 1 mark Mass, momentum and velocity equation Write down the equation that links mass, momentum and velocity. 03.3 · 3 marks Two skaters and momentum conservation Skater A bumps into another skater, Skater B. Skater B is stationary. The skaters move off together in a straight line. Explain...

AQA · GCSE · Physics

Magnetism and electromagnetism

02.2 · 3 marks Testing blocks with a permanent magnet Describe how another permanent magnet can be used to identify the blocks. 02.3 · 6 marks Electromagnet lifting and moving the blocks Explain how this electromagnet is able to pick up and move the blocks.

AQA · GCSE · Physics

Waves

05.1 · 2 marks Transverse waves and longitudinal waves Describe the difference between transverse waves and longitudinal waves.