Step 4 of 4 · topic

Measurements and uncertainties

OCR H556 — matched to your course.

Random/systematic error, uncertainty propagation, graphs and significant figures.

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Measurements and uncertainties

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Subtopics and study areas

  • Distinguish random uncertainty from systematic error.
  • Calculate absolute and percentage uncertainties.
  • Propagate uncertainties appropriately for sums, products and powers.

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Planning and carrying out an independent investigation

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Subtopics and study areas

  • Turn a research question into a safe, quantitative investigation with justified variables, analysis and evaluation.

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Research skills for practical physics

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Subtopics and study areas

  • Research a physics question using reliable sources, cite evidence correctly and connect the research to a practical investigation.