Book+1,+5.4+Notes

3.Measured in joules/second or
4. watts i. James Watt ii. 1 watt of power is produced when 1 joule of work is done in 1 second a.) 1 Watt= 1 j/s iii. 1000 watts= 1 kilowatt (kW) B. Power is the rate at which energy is transferred from 1 object to another or converted from 1 form to another C. Can be found whenever energy is being transferred D. horsepower 1. Not SI unit 2. James Watt- described steam engine 3. 1 horsepower= 746 watts

4. 20 x 5 / 10= 10W
5. 20 x 5 / 5= 20W

6. (20+20) x 5 / 5s= 40 W

=No study guide questions.=