direct proportionality
What direct proportionality means in Physics GCSE, as defined for AQA.
Definitions of direct proportionality
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Check what you remember
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Reference: AQA
The relationship where double the force gives double the extension, shown by a straight line through the origin on a graph of force against extension.
The relationship where doubling the potential difference doubles the current exactly, shown by a straight line passing through the origin.
Topics that use direct proportionality
- Forces and elasticity (AQA GCSE)
- Resistors (AQA GCSE)
Related terms
- comparing at fixed pd
- constant resistance
- constant temperature
- decreasing gradient
- diode
- diodes
- elastic deformation
- Elastic limit
Using direct proportionality in the exam
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