1) In going up a flight of stairs, who do you think is more powerful? a) the heaviest b) the lightest c) the fastest d) the slowest 2) If it takes 50 J of work to climb a set of stairs, how fast would you have to climb them to use 5 Watts of power? a) 5s b) 10s c) 15s d) 20s 3) Will you use more power running up the stairs or walking up the stairs? a) Running up the stairs b) Walking up the stairs c) The same in both 4) A machine does 2500 J of work in 1 min. What is the power developed by the machine? a) 25W b) 250W c) 2500W d) 25000W 5) Which of the following statements is not true about power?  a) Power is a time-based quantity b) Power refers to how fast work is done upon an object c) The standard metric unit of power is the Watt. d) The Newton•meter is a unit of power

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