OCR GCSE Gateway Science Suite - Physics A J249 · P7.2

Power and efficiency

Code: P7.2
In: P7 Energy
Course: GCSE Gateway Science Suite - Physics A J249
Board: OCR

Codes and titles are read by a script from OCR's published specification and have not been checked by a person. What each point covers is in the specification itself: OCR’s specification.

Points under P7.2

PM7.2i Efficiency equation
P7.2a Energy dissipation
P7.2b Energy transfer in domestic devices
P7.2c Power ratings of appliances
P7.2d Calculating efficiency
P7.2e Increasing efficiency
P7.2f Reducing unwanted energy transfer
P7.2g Building walls and rate of cooling

Points in P7 Energy

P7.1 Work done
P7.2 Power and efficiency