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PSQ3W4PHYS

WORK AND POWER

QuestionAnswer
Force a push or pull
Horsepower common unit used to express power. One unit of horsepower is equal to 750 Watts).
Joule basic scientific unit for electrical, mechanical and thermal energy; equal to 1 N-m.
Newton-meter unit of measurement used to express work.500 Joules of work is equal to 500 Newton-meters.
Power rate at which work is accomplished. Power measures the rate of energy used over time.
Watt standard unit of power. The Watt equals one Joule per second; 10 Watts is 10 J/s.
Work Occurs when a force is applied to an object and the object moves. Soccer players do work when they exert force on a soccer ball and it flies through the air.
Energy the ability to do work or bring about change
10 Watts 10 Joules per second
100 N-m For example, 25 N of force applied over 4 meters.
Created by: Ruth.Miller
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