Physics GCSE
Significant figures and units
What Significant figures and units means in Physics GCSE, as defined for AQA.
Definition of Significant figures and units
Check what you remember
Read the wording for your board, then hide it and explain Significant figures and units in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
An estimate should be rounded to a sensible number of significant figures, with units converted if needed and the force given in newtons.
Topics that use Significant figures and units
- Factors affecting braking distance 2 (AQA GCSE)
Related terms
- brake overheating
- braking force
- deceleration
- Deceleration of vehicles
- Energy transfer and braking
- Estimating physical quantities
- Force, mass and acceleration
- Kinetic energy
Using Significant figures and units in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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