# "Describe and explain" questions — Pearson Edexcel International GCSE Physics (4PH1)

> 8 questions · physics

## How to answer

"describe and explain" questions from Pearson Edexcel International GCSE Physics (4PH1). Read the rubric carefully — the marking points cluster into scientific ideas rather than free-form prose.

## Sample questions

1. [A coil of wire is connected to a sensitive galvanometer. A bar magnet is pushed quickly into the centre of the coil and …](https://www.gradenine.co.uk/q/a-coil-of-wire-is-connected-1d3238fd)
2. [A moon orbits a planet in a slightly elliptical orbit at a near constant orbital speed. State what provides the force th…](https://www.gradenine.co.uk/q/a-moon-orbits-a-planet-in-2b1d0e84)
3. [A sound wave travels through air and then enters water. Describe and explain what happens to the speed, frequency, and w…](https://www.gradenine.co.uk/q/a-sound-wave-travels-through-air-36df9a21)
4. [A chain reaction occurs when uranium-235 undergoes nuclear fission in a nuclear reactor. Describe how a chain reaction i…](https://www.gradenine.co.uk/q/a-chain-reaction-occurs-when-uranium-235-44fbafba)
5. [A uranium-235 nucleus absorbs a slow-moving neutron and undergoes nuclear fission. Describe what happens during this fis…](https://www.gradenine.co.uk/q/a-uranium-235-nucleus-absorbs-a-slow-moving-4a3d0dd4)
6. [A natural satellite orbits a planet in a slightly elliptical orbit. Describe how the orbital speed and orbital period of…](https://www.gradenine.co.uk/q/a-natural-satellite-orbits-a-planet-6e6915b7)
7. [A compass needle is placed near a bar magnet. Describe what is meant by a magnetic field and explain how magnetic field …](https://www.gradenine.co.uk/q/a-compass-needle-is-placed-near-72194ab0)
8. [A comet travels in a highly elliptical orbit around the Sun. Describe and explain how the orbital speed of the comet cha…](https://www.gradenine.co.uk/q/a-comet-travels-in-a-highly-e13fd290)

## Related

- [Pearson Edexcel International GCSE Physics (4PH1) revision notes](https://www.gradenine.co.uk/learn/pearson-edexcel-international-gcse-physics-4ph1)
- [Pearson Edexcel International GCSE Physics (4PH1) past papers](https://www.gradenine.co.uk/past-papers/pearson-edexcel-international-gcse-physics-4ph1)
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