AQA · GCSE · Physics

Measurement errors

04.1 · 1 mark Identifying a balance measurement error What type of error is shown on the balance? 04.2 · 1 mark Correcting a balance measurement How could the student get a correct value for the mass of the cube from the balance?

AQA · GCSE · Physics

Displacement method

04.5 · 3 marks Measuring volume by displacement Describe how the student could use a displacement method to determine an accurate value for the volume of a single coin.

AQA · GCSE · Physics

Energy

06.6 · 3 marks Testing a claimed heat-pump efficiency The air in the building gains 400 J for every 100 J of energy transferred from the mains electricity supply to the compressor.... 03.3 · 2 marks Environmental impact of fossil-fuel electricity Explain one environmental impact of using fossil fuels to generate electricity. 06.1 · 2 marks Coolant temperature and internal energy Explain what happens to the internal energy of the coolant as its temperature increases. 01.3 · 1 mark Energy, power and time equation Write down the equation which links energy ($E$), power ($P$) and time ($t$). 04.4 · 2 marks Constant water temperature during heating The temperature of the water reaches 42 °C. The temperature then stays constant even though the fire continues to burn. Explain... 07.1 · 3 marks Kangaroo speed and jump height Explain why a kangaroo can jump higher as its speed increases.

AQA · GCSE · Physics

Particle model of matter

06.4 · 2 marks Coolant density, temperature and pressure The compressor increases the density and temperature of the coolant vapour inside the pipe. Explain why the pressure in the pipe...

AQA · GCSE · Physics

Forces

01.4 · 1 mark Extension, force and spring constant equation Write down the equation which links extension ($e$), force ($F$) and spring constant ($k$). 02.7 · 1 mark Benefits of live tracking data The tracking device sends data to a computer during the game. Suggest one advantage of the data being sent during the game. 01.1 · 1 mark Meaning of elastically deformed What is meant by ‘elastically deformed’? Tick (✓) one box. 02.1 · 1 mark Meaning of vector quantity Velocity and acceleration are both vector quantities. What is a vector quantity? Tick (✓) one box. 02.5 · 1 mark Acceleration, mass and resultant force equation Write down the equation which links acceleration ($a$), mass ($m$) and resultant force ($F$). 02.6 · 3 marks Mass of the player calculation The player accelerates at 25 m/s$^2$ when a resultant force of 1800 N acts on her. Calculate the mass of the player. 06.1 · 5 marks Changing acceleration at maximum engine power An aeroplane accelerates from a low speed to a high speed with the engines at maximum power. Explain why the acceleration is not...

AQA · GCSE · Physics

Magnetism and electromagnetism

04.1 · 1 mark Magnetic-field strength around a magnet Where is the magnetic field of the magnet the strongest? 04.2 · 1 mark Magnetic-field strength from field-line spacing How does Figure 4 show that the strength of the magnetic field is not the same at all places?

AQA · GCSE · Physics

Repeat readings and means

03.3 · 1 mark Repeat readings and mean calculation What is the advantage of taking repeat readings and then calculating a mean?

AQA · GCSE · Physics

Waves

03.4 · 2 marks Water depth and wave wavelength The speed of the wave is affected by the depth of the water in the ripple tank. The deeper the water the faster the wave.... 05.1 · 2 marks Infrared imaging of temperature differences Explain why the infrared camera is able to show that parts of the hand are at different temperatures. 03.1 · 4 marks Measuring ripple-tank frequency and wavelength Describe how the frequency and wavelength of the water waves in the ripple tank can be measured accurately.

AQA · GCSE · Physics

Electricity

01.1 · 1 mark Correcting the wires in a plug The plug is not wired correctly. What should be done to connect the wires in the plug correctly?