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5/30 MCQs for:
MECHANICS : ENERGY - Power
What is the unit of power?
If the power of a machine is 1 kW, how much energy does it consume in 1 hour?
What is the definition of power in physics?
A motor does 500 J of work in 5 seconds. What is the power output of the motor?
A 2000 W motor is used for 1 hour. How much energy does it consume?