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Mechanical Advantage

Mechanical Energy

Energy

Rotational Kinetic Energy

Wheel and Axle

Wedge

Compound Machine

Gravitational Potential Energy

Efficiency

Inclined Place

Law of Conservation of Energy

Lever

Work

Machine

Resistance Force

Screw

Pulley

Elastic Potential Energy

Effort Force

Reference Level

kinetic energy

Ideal Mechanical Advantage

equal to the displacement of the effort force, divided by displacement of the load

the ratio of resistance force to effort force

kinetic energy of an object, proportional to the object"s moment of inertia and square of its angular velocity

eases the load by changing either the magnitude or the direction of a force to match the force to the capability of the machine or the person

a machine consisting of two or more simple machines that are connected so that the resistance force of one machine becomes the effort force of the second machine

simple machine consisting a wheel which is fastened to an axle to apply torque

the position where gravitational potential energy is defined as zero

the sum of kinetic and gravitational potential energy of a system

flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load

force exerted by the machine

a wheel with a grooved rim around which a cord passes

beam or rigid rod pivoted at a fixed hinge or fulcrum

energy that is stored in the system as a result of gravitational force between the object and Earth

the ratio of output work to input work

the potential energy that may be stored in an object, such as a rubber band, as a result of its change in shape

converts rotational motion to linear motion, and a torque to a linear force

product of the force and the object's displacement

ability of an object to produce a change in itself or the world around it

triangle shaped tool; can be used to separate two objects or portions of objects, lift up an object, or hold an object in place

force exerted by a person on a machine

states that in a closed, isolated system, energy is not created or destroyed, but rather, is conserved

energy resulting from motion