POWER Flashcards
Scientifically, ______ is the rate of doing work
Power
Power equals work over time. In other words, power is getting the most work done in the shortest amount of time
TRUE or FALSE?
TRUE
Power is measured in ______ or ______.
joules per second (J/s) or WATTS(w)
The unit of power is J/s is also known as watt, a unit named after ________, the inventor of the “steam engine”
James Watt
1 watt is equal to?
1 Joule per second
Sample problem #1
How much power was exerted to accomplish 350 Joules of work in 30 seconds?
11.66 Watts
Sample problem #2
How much power was exerted to accomplish 960 Joules of work in 80 seconds?
12 Watts
Sample problem #3
How much power was exerted to accomplish 330 Joules of work in 100 seconds?
3.3 Watts
Sample problem #4
How much power was exerted to accomplish 370 Joules of work in 30 seconds?
12.3 Watts