Units and measurement
What Units and measurement means in Combined Science GCSE, as defined for AQA.
Definitions of Units and measurement
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Units and measurement in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Potential difference is measured in volts (V), current in amperes (A) and resistance in ohms (Ω), and values must be in the correct units before calculating.
Its unit is newtons per kilogram, written as N/kg or N kg⁻¹.
Topics that use Units and measurement
- Current, resistance and potential difference (AQA GCSE)
- Gravity (AQA GCSE)
Related terms
- Ammeter
- Ampere
- Calibration
- Circuit construction from diagrams
- Current
- Direct proportionality
- Directly proportional
- Equation rearrangement
Using Units and measurement 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.
Practise Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge