AQA · GCSE · Physics

Electricity

01.6 · 2 marks Earth wire and metal-case safety The earth wire is now connected to the metal case of the washing machine. Explain why it would now be safe for a person to touch... 03.3 · 2 marks Wire length and resistance Describe the relationship between the length of the wire and the resistance of the wire. 01.5 · 2 marks Earth wire and metal-case safety The earth wire is not connected to the metal case of the washing machine. Explain why it would not be safe for a person to touch... 03.1 · 3 marks Controlling temperature in a wire-resistance practical Explain why the student needed to adjust the variable resistor each time she changed the length of the wire. 01.5 · 1 mark Current, potential difference and resistance equation Write the equation which links current, potential difference and resistance. 03.3 · 2 marks Direct and alternating potential difference Mains electricity is an ac supply. Explain the difference between direct and alternating potential difference. 04.4 · 2 marks Temperature and current in a thermistor The student increased the temperature of the thermistor. Explain how the current in the thermistor changed. 01.3 · 1 mark Reversing current and potential-difference signs How should the student change the circuit to give negative values for current and potential difference?

AQA · GCSE · Physics

Atomic structure

06.3 · 2 marks Dice type and simulated half-life The half-life represented by rolling eight-sided dice is likely to be different from the half-life represented by rolling...

AQA · GCSE · Physics

Forces

04.1 · 2 marks Meaning of a vector quantity and a scalar quantity Velocity is a vector quantity, speed is a scalar quantity. Describe what is meant by a vector quantity and a scalar quantity. 06.2 · 2 marks Road safety at a reduced speed Explain one other advantage of a reduced speed limit. 07.1 · 2 marks Balance reading and force on a wire When the switch was closed the reading on the top pan balance increased. Explain why the increased reading showed that there was... 04.3 · 1 mark Mass m, momentum p and velocity v equation Write down the equation that links mass $(m)$, momentum $(p)$ and velocity $(v)$. 03.1 · 1 mark Meaning of elastic behaviour The springs behave elastically when a force is applied. What is meant by elastic behaviour? Tick (✓) one box. 01.4 · 3 marks Maximum force the magnet can exert calculation Calculate the maximum force the magnet can exert. 02.4 · 3 marks Mass of the trolley calculation When the resultant force on the trolley was 0.63 N the acceleration of the trolley was 2.1 m/s². Calculate the mass of the trolley. 01.3 · 1 mark Gravitational field strength, mass and weight equation Write down the equation that links gravitational field strength ($g$), mass ($m$) and weight ($W$). 02.3 · 1 mark Acceleration, mass and resultant force equation Write down the equation that links acceleration ($a$), mass ($m$) and resultant force ($F$).

AQA · GCSE · Physics

Magnetism and electromagnetism

01.1 · 2 marks Testing metal samples with a magnet A student placed a magnet close to each metal sample. Describe what happened. 01.2 · 2 marks Separating an unreacted solid from a mixture The paper clip in Figure 2 is not a permanent magnet. Explain what would happen if the paper clip was removed and brought close...

AQA · GCSE · Physics

Energy

06.4 · 3 marks Vehicle mass and stopping distance The driver delivers all the packages. The empty van has a shorter stopping distance than the full van when driven at the same... 03.1 · 1 mark Meaning of a non-renewable energy resource Petrol is a non-renewable energy resource. What is meant by a non-renewable energy resource?

AQA · GCSE · Physics

Waves

05.1 · 2 marks X-rays produce images of the bones inside the body Explain why X-rays can be used to produce images of the bones inside the body.

AQA · GCSE · Physics

Particle model of matter

02.2 · 3 marks Mass of ice produced calculation Calculate the mass of ice produced.