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Simple Machines

Vocabulary

TermDefinition
Fulcrum the point on which a lever rests or is supported and on which it pivots.
Mechanical advantage the ratio of the force produced by a machine to the force applied to it
Kinetic energy the energy an object has due to its motion
Potential energy the amount of energy that is stored in an object; energy that an object has because of its position relative to other objects
Simple machine a simple device without moving parts that changes the magnitude or direction of a force
Work a force applied to an object over a distance
Wheel one of the simple machines; allows things to move easily
Lever a simple machine consisting of a solid bar that rotates around a pivot point; used to lift objects
Pulley a simple machine consisting of a rope that is wrapped around a wheel; can be used to help lift heavy objects
Wheel and axle a wheel attached to an axle so that these two parts rotate together in which a force is transferred from one to the other
Inclined plane an object with a flat, tilted surface; a simple machine that helps things roll or slide upward off of the ground
Power the ratio of the amount of work done per unit of time, or the rate at which energy is transferred or transformed
Wedge a simple machine that can be used to split objects apart, hold objects in place, or lift objects from the ground; consists of two inclined planes joined together
Screw a simple machine made of a shaft with grooves that wrap around it going from top to bottom
Compound machine simple machines that work together
Created by: kailen.lee
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