Question Constellation Sign up for free AQA · GCSE · Physics
Electricity
03.1 · 2 marks Connecting Meters in an LED Circuit Complete Figure 3 to show how the student should have connected a voltmeter and an ammeter into the circuit. Use the correct... 03.2 · 2 marks Varying LED Potential Difference Describe how the student should have adjusted the circuit to vary the potential difference across this range. 03.4 · 2 marks LED Current Under Reverse Bias Explain what happens to the current in the LED when the potential difference across the LED is negative. 03.6 · 1 mark Linear Current–Potential Difference Relationship Which of the following always shows a linear relationship between current and potential difference? 01.5 · 3 marks Calculating Whisk Power from Current Calculate the power of the whisk. 01.7 · 1 mark Resistance Change at Higher Power Complete the sentence. 03.3 · 3 marks Completing an LED Characteristic Graph Complete Figure 4. You should plot the remaining points from Table 1 and draw a line of best fit.
AQA · GCSE · Physics
Reproducibility
AQA · GCSE · Physics
Atomic structure
05.1 · 4 marks Irradiation, Contamination and Drinking-Water Hazard Explain how irradiating and contaminating the water affected the hazard caused by drinking the water. 02.2 · 1 mark Neutrons from Isotope Notation How many neutrons are there in this gold atom? 02.4 · 1 mark Evidence for the Neutron Which scientist did the experiments that provided evidence that neutrons exist? 05.2 · 1 mark Beta Decay of Vanadium-52 What is the correct nuclear equation for this process? 05.3 · 4 marks Comparing Half-Life Activity Changes Explain how the activity of the radon-222 and vanadium-52 had changed after 7.4 minutes.
AQA · GCSE · Physics
Peer review
AQA · GCSE · Physics
Energy
06.4 · 4 marks Efficient Storage and Carbon Dioxide Reduction Explain why efficient energy storage is important in reducing the amount of carbon dioxide released when generating electricity. 01.3 · 3 marks Calculating Work Time from Power Calculate the time for the whisk to do 23 000 J of work. 04.1 · 2 marks Energy Store Changes in a Climbing Drone Describe two other changes to the energy stores of the drone as it moved at a constant speed and gained height. 04.2 · 4 marks Calculating the Drone’s Lower Height Calculate the height above the ground of the drone when the motor was switched back on. Use the Physics Equations Sheet. 04.3 · 5 marks Maximum Speed from Energy Transfer Calculate the maximum possible speed of the drone when the motor was switched back on. Use the Physics Equations Sheet. Give... 06.1 · 3 marks Overall Efficiency of a CAES System Calculate the efficiency of the CAES system. Give your answer to 2 significant figures. 06.2 · 4 marks Air-Particle Motion and Turbine Power Explain how the motion of the particles in warmer air causes an increase in the power transferred to the turbine. 06.3 · 6 marks Heating Energy of Compressed Air Calculate the energy transferred to the compressed air in the storage tank. Use the Physics Equations Sheet. Give your answer in...
AQA · GCSE · Physics