Physics GCSE
Power and energy calculations
What Power and energy calculations means in Physics GCSE, as defined for OCR.
Definition of Power and energy calculations
Check what you remember
Read the wording for your board, then hide it and explain Power and energy calculations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The relations P = V × I and E = P × t link power, energy, potential difference, current and time.
Topics that use Power and energy calculations
- Simple circuits (OCR GCSE)
Related terms
- Cell polarity conventions
- constant resistance
- Current
- diode
- E = P t
- Energy transferred
- Equivalent resistance in series
- Explaining mechanisms
Using Power and energy calculations 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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