Physics A-Level
Variables and control
What Variables and control means in Physics A-Level, as defined for OCR.
Definition of Variables and control
Check what you remember
Read the wording for your board, then hide it and explain Variables and control in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
In calculations you may be told which factors are held constant so that you can isolate the effect of one variable.
Topics that use Variables and control
- Dynamics (OCR A-Level)
Related terms
- Drag
- Drag in gases
- Free fall with drag
- Friction
- homogeneity
- Isolating objects
- newton
- Resultant force and free-body diagrams
Using Variables and control 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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