Some A-level questions are structured in order to assess specific pieces of understanding. This question on escape velocity has several linked sections. Some links are subtle, but successful students will spot these and use that knowledge in their answers.
The topic of fields is a fertile area for this type of question. There are tricky conceptual ideas, such as field and potential, and calculations that require good physics understanding across more than one topic. An example is question 02 from AQA Physics Paper 7408/2, November 2020, which is reproduced here by kind permission of AQA. The answers that follow are the responsibility of Physics Review and have been neither provided nor approved by AQA.
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