1,438 free study cards across 8 topics, written to the AQA specification. Study them as flashcards or multiple choice, and rate each one Got it, Almost or Forgot.
Every card is tagged to a topic in the AQA GCSE Physics specification, so you can revise one topic at a time.
Three cards from the deck, as you will see them in BrainBerry: the question, the answer, and an explanation of why.
Explain why decreasing the volume of a gas at constant temperature increases its pressure.
The same number of particles are now confined to a smaller space, so they collide with the walls more often, producing a greater pressure.
The particles' average speed has not changed - only how often they hit the walls has changed.
Give an alternative definition of half-life in terms of count-rate or activity.
The time taken for the count-rate (or activity) of a sample to fall to half its initial level.
This definition is often more practical, since count-rate can be measured directly with a detector.
What type of force acts between two charged objects that are not touching?
A non-contact force, called the electrostatic force, which acts through the electric field between them.
Physics only. Like gravity and magnetism, the electrostatic force can act at a distance without the objects touching.
Practise the June 2024 and 2025 AQA Physics papers question by question. Every question on the paper has its own set of BrainBerry flashcards and multiple-choice cards, testing the same content and skills, each with an explanation.
The cards are written by BrainBerry to match each question; they are not the exam board's own wording.
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