Efficiency
____ can be calculated by comparing a machine's output work to its input work.
Machine
A(n) ____ is a device that changes the magnitude or the direction of a force.
Compound machine
A(n) ____ consists of two or more simple machines linked so that the resistance force of one machine becomes the effort force of the second machine.
Resistance force
The _____ is the force exerted by a machine.
Watt
A ____ is a unit of power defined as 1 joule per second
Effort force
The ____ is the force exerted by a person on a machine
Work-energy theorem
The _____ states that the work done on an object equals the change in kinetic energy of the object
Energy
The ability of an object to produce a change in itself or its surroundings is called _____
Kinetic energy
The energy that results from the motion of an object is called _____
Power
The rate of doing work is called ____.
Mechanical advantage
The ratio of the resistance force of a machine to its effort force is its ____.
Joule
The ____ is the SI unit used for work.
Ideal mechanical advantage
To calculate a machine's _____, compare the effort distance to the resistance distance
Work
When an applied force is multiplied by the distance through which the force is applied, ___ is calculated.