Physics A-Level
Area under a graph as work done
What Area under a graph as work done means in Physics A-Level, as defined for OCR.
Definition of Area under a graph as work done
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Reference: OCR
Because the graph is a triangle of base Q and height V, the area is ½QV, which links directly to the energy formulae and explains why the factor ½ appears.
Topics that use Area under a graph as work done
- Energy (OCR A-Level)
Related terms
- Graphical representation of energy
- Proportionality of charge and p.d.
- Rapid discharge applications
- Selection of appropriate equation
- Temporary versus continuous energy supply
- Capacitance from gradient
- Energy equations for capacitors
- Energy storage in a capacitor
Using Area under a graph as work done in the exam
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