CAIE A-Level Physics AS 5.1.3 That the Efficiency of a System Is the Ratio of Useful Energy Output Questions
Calculate power as the rate of doing work or transferring energy.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- AS
Exam points
- Calculate power as the rate of doing work or transferring energy.
CAIE A-Level Physics AS 5.1.3 That the Efficiency of a System Is the Ratio of Useful Energy Output Questions question 1
[Maximum number: 1]
Which statement about efficiency is correct?
A
Efficiency does not have a unit.
B
The joule is a unit of efficiency.
C
The metre is a unit of efficiency.
D
The watt is a unit of efficiency.
A
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