Exam-style question
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Explain Describe Observations From Cathode Ray Experiments in a way that directly answers the AQA A-Level Physics objective.
Model answer
What a good answer should say
- Exam Command response bfab03: state Describe observations from cathode ray experiments., apply Michelson-Morley, special relativity, time dilation, de Broglie wavelength, electron diffraction, and finish with the physical consequence for The discovery of the electron.
Explanation
Why this works
Stem being answered: Explain Describe Observations From Cathode Ray Experiments in a way that directly answers the AQA A-Level Physics objective. Route focus: turning-points-in-physics / The Discovery Of The Electron.
Key vocabulary for this item: observations, cathode, ray, experiments. Written check: state the principle, apply it to the named context, and close with the requested conclusion.
The explanation should keep the answer tied to these exact words rather than a general physics summary, using units, graph evidence or equation reasoning only when they are relevant to the stem.
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