Learning objective
Explain evidence that cathode rays contain charged particles.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
The discovery of the electron
Subtopic
Cathode rays
Aqa A Level PhysicsTurning points in physics
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Quick explanation
Explain evidence that cathode rays contain charged particles
- This point belongs to The discovery of the electron, especially Cathode rays.
- You need to be able to explain evidence that cathode rays contain charged particles.
- The key ideas to know are cathode ray.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
cathode ray
Why it matters
This objective helps connect Cathode rays to exam-style questions, flashcards, and revision notes for The discovery of the electron.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe observations from cathode ray experiments.
Cathode rays
- Interpret deflection by electric and magnetic fields.
Cathode rays
- Link cathode ray evidence to discovery of the electron.
Cathode rays
- Describe thermionic emission.
Thermionic emission of electrons
- Explain why heating can release electrons from metals.
Thermionic emission of electrons