POWER

Question 1

Scientifically, ______ is the rate of doing work

Answer 1

Power

Question 2

Power equals work over time. In other words, power is getting the most work done in the shortest amount of time

TRUE or FALSE?

Answer 2

TRUE

Question 3

Power is measured in ______ or ______.

Answer 3

joules per second (J/s) or WATTS(w)

Question 4

The unit of power is J/s is also known as watt, a unit named after ________, the inventor of the “steam engine”

Answer 4

James Watt

Question 5

1 watt is equal to?

Answer 5

1 Joule per second

Question 6

Sample problem #1

How much power was exerted to accomplish 350 Joules of work in 30 seconds?

Answer 6

11.66 Watts

Question 7

Sample problem #2

How much power was exerted to accomplish 960 Joules of work in 80 seconds?

Answer 7

12 Watts

Question 8

Sample problem #3

How much power was exerted to accomplish 330 Joules of work in 100 seconds?

Answer 8

3.3 Watts

Question 9

Sample problem #4

How much power was exerted to accomplish 370 Joules of work in 30 seconds?

Answer 9

12.3 Watts