a type of simple machine; consists of a rigid bar that pivots about a fulcrum, used to transmit and enhance power or motion
simple machine that consists of a sloping surface, such as a ramp, that reduces the amount of force needed to lift something by increasing the distance over which the force is applied
a simple machine that is made up of two inclined planes and that moves; often used for cutting
wheel & axle
a type of simple machine that consists of a rod driven through the center of a cylinder that is allowed to rotate freely, yielding a mechanical advantage equal to the cylinder's diameter
a wheel with a rope that lets you change the direction in which you move an object
an inclined plane wrapped around a cylinder
the ratio of output force to input force for a machine
A device that reduces the amount of force needed to perform a task or changes the direction of a force.
a push or pull that causes an object to move, stop, or change direction
a force that opposes motion between two surfaces that are touching
the force that pulls objects toward earth
A measure of the force of gravity on an object
a measure of the amount of matter an object contains
Force x Distance
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
the pivot about which a lever turns
a shaft on which a wheel rotates
The weight or resistance that is moved using a simple machine.
a machine made of many simple and compound machines
The force applied to move a load using a simple machine
Engineer, writer, and cartoonist who drew cartoons using complicated machines to accomplish a simple task; a type of machine that makes a simple task extremely complicated.