Physics A-Level
Control of variables
What Control of variables means in Physics A-Level, as defined for AQA.
Definition of Control of variables
Check what you remember
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Reference: AQA
Keep temperature constant in the Boyle's law experiment and pressure constant in the Charles's law experiment; use a fixed mass of gas and avoid leaks.
Topics that use Control of variables
- Ideal gases (A-level only) (AQA A-Level)
Related terms
- Absolute zero
- Avogadro constant
- Boltzmann constant
- Boyle's law
- Gas laws
- Ideal gas equation
- Kelvin scale
- Uncertainties and improvements
Using Control of variables in the exam
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