Chapter 14 Vocab Flashcards
The product of distance and the force in the direction an object moves.
Work
The SI unit of work, equal to 1 newton-meter
Joule (J)
The rate of doing work.
Power
The SI unit of power, equal to one joule per second.
Watt
A device that changes a force.
Machine
The force exerted on a machine.
Input force
The distance through which the input force acts in a machine.
Input distance
The work done on a machine as the input force acts through the input distance.
Work input
The force exerted by a machine.
Output force
The distance an output force acts through in a machine.
Output distance
The work done by a machine as the output force acts through the output distance.
Work output
The number of times that a machine increases an input force.
Mechanical Advantage
The ratio of the output force to the input force in a machine.
Actual Mechanical Advantage
The mechanical advantage of a machine in absence of friction.
Ideal Mechanical Advantage
Th percentage of the work input that becomes work output in a machine.
Efficiency
