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Topic 1: Key concepts of physics has 1 subtopic:
- Units, prefixes and calculations
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GCSE Edexcel Higher Physics · Topic 1 of 15
Topic 1: Key concepts of physics – GCSE Edexcel Higher Physics revision notes
Choose a subtopic. Units, prefixes and the numerical foundations used across Edexcel Physics. 3 lessons in 1 subtopic.
Revise Topic 1: Key concepts of physics for GCSE Edexcel Higher Physics, including Units, prefixes and calculations. 3 lessons across 1 subtopic.
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Lessons
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Subtopics
Topic 1: Key concepts of physics lessons by subtopic
3 lessons, grouped by subtopic.
Units, prefixes and calculations
- SI units and metric prefixes: Recall SI units for common physics quantities and use metric prefixes from giga to nano.
- Converting units in calculations: Convert between units reliably, including time conversions such as hours to seconds.
- Standard form and significant figures: Use standard form for very large or very small values and round answers to a sensible number of significant figures.
Revise Right Mocks '26
Edexcel GCSE Physics mock draft, 26–31 Oct. Draft coverage: Physics Paper 1 (Higher tier). Reviewed for an original-practice sitting; check student availability before registering. Marking and results will follow later, after separate approval. Eligible new accounts receive a five-day Pro trial when signup email verification completes. Previous trials keep their original expiry. After expiry, new papers need Pro unless you have an explicitly confirmed free sitting offer for this event. That offer adds no Pro time or AI learning. Saved attempts and released results remain readable. No card or automatic charge.
More in this course
Go back to the full GCSE Edexcel Higher Physics topic list, or practise this topic with past-paper questions.
Frequently asked questions
Is this the right Topic 1: Key concepts of physics page for my course?
These notes are for GCSE Edexcel Higher Physics. If you are on a different exam board or tier, choose your course from the Physics page instead, because the content is not always the same.
What should I do after reading the lessons?
Test yourself without the notes open, then try past-paper questions on the same topic. The questions you get wrong tell you which lesson to go back to.