click below
click below
Normal Size Small Size show me how
Qtr. 2, Wk 4: Work
Qtr. 2 Wk. 4: Work
Term | Definition |
---|---|
work | force exerted on an object causing the object to move in the same direction as the force; work = force x distance |
power | the rate at which work is done; power = work divided by time |
joule | the SI unit of work; equal to one newton-meter |
machine | a device that makes work easier by changing the amount of force exerted, the distance over which a force is exerted, or the direction in which a force is exerted |
simple machine | one of six basic mechanisms that use mechanical advantage to multiply force |
input force | the force exerted on a machine by YOU |
input work | the input force times the input distance |
output force | the force exerted on an object by the MACHINE |
output work | the output force times the output distance |
mechanical advantage | the number of times a machine increases the force exerted on it; MA = output force divided by input force |