Physics A-Level
Proportional reasoning
What Proportional reasoning means in Physics A-Level, as defined for AQA.
Definition of Proportional reasoning
Check what you remember
Read the wording for your board, then hide it and explain Proportional reasoning in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The period is approximately proportional to RC, so doubling R or C roughly halves the frequency.
Topics that use Proportional reasoning
- Astables (A-level only) (AQA A-Level)
Related terms
Using Proportional reasoning in the exam
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