Simple Machines (Mechanisms) Terms

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• Chain

The ratio of the magnitude of the resistance and effort forces

applied to a system.

• Mechanical

• Pulley

• Actual Mechanical Advantage

• Lever

A continuous band of tough flexible material used to transmit

motion and power within a pulley system.

• String

• Cord

• Effort Force

• Belt

A profession for which one trains and which is undertaken as

a permanent calling.

• Worker

• Student

• Professional

• Career

A series of usually metal links or rings connected to or fitted

into one another and used to transmit motion and power

within a sprocket system.

• Screw

• Chain

• Metal

• Pulley

An external force applied to an object.

• Effort Force

• Pulley

• Force

• Push

The ratio of useful energy output to the total energy input, or

the percentage of the work input that is converted to work

output.

• Input

• Efficiency

• Deficiency

• Output

The resistance that one surface or object encounters when

moving over another.

• Push

• Friction

• Pull

• Resistance

The fixed point around which a lever rotates.

• Gear

• Inclined Plane

• Lever

• Fulcrum

A circular toothed object used to transfer rotary motion and

torque through interlocking teeth.

• Sprocket

• Gear

• Lever

• Screw