AnswersPBCSD_Grade_Forgiveness_2003310_Physical Science_S2_2022Introduction to MachinesQuestion 2
2
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Introduction to Machines

Question 2 • PBCSD_Grade_Forgiveness_2003310_Physical Science_S2_2022

Which refers to the ratio of output work to input work of a machine expressed as a percent?

Answer
A
total work
B
wattage
C
efficiency
D
power
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