Flashcard 1 · Energy
A device transfers 600 J in 30 s. What is its average power?
Reveal answer and explanation
20 W.
Power = energy ÷ time = 600 ÷ 30. One watt is one joule per second.
Focused recall
GCSE physics flashcards
Remembering an equation does not tell you when to use it. Make GCSE physics flashcards from your notes to review quantities, units and conditions, then put the cards aside and work through calculations on paper.
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Original sample notes
Power is energy transferred divided by time. For constant mass in an inertial frame, resultant force equals mass times acceleration. Electric current is charge flow per unit time. Wave speed equals frequency times wavelength. During melting of a pure substance at constant pressure, temperature stays constant while energy changes the particle arrangement.
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Flashcard 2 · Forces
A resultant force of 6 N acts on a 2 kg object. What acceleration does F = ma predict?
Reveal answer and explanation
3 m/s² in the direction of the resultant force.
Acceleration = force ÷ mass = 6 ÷ 2, for the constant-mass inertial-frame model.
Flashcard 3 · Electricity
12 C of charge passes a point in a circuit in 4 s. What is the average current?
Reveal answer and explanation
3 A.
Current = charge ÷ time. An ampere is a coulomb per second; current is not energy used up by a component.
Flashcard 4 · Waves
A wave has frequency 5 Hz and wavelength 2 m. What is its speed?
Reveal answer and explanation
10 m/s.
Wave speed = frequency × wavelength. Frequency counts cycles per second; wavelength is the distance of one cycle.
Flashcard 5 · Particle model
Why can energy be supplied while a pure substance melts without its temperature rising at constant pressure?
Reveal answer and explanation
The energy increases the particles’ potential energy as their arrangement changes.
During the phase change, temperature and average kinetic energy stay constant. Energy transfer is still occurring.
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AQA GCSE Physics 8463 includes content that differs from Combined Science and marks some material as higher tier or physics only. The examples below are revision illustrations, not a prediction of assessed questions. Consult current board guidance for equation support and practical requirements; this page makes no claim about a particular exam sitting.
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Topic reference: AQA GCSE Physics 8463 subject content, checked 13 October 2026. Sample prompts and explanations are original, not copied examination questions.
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