General
A set of parts that work together and use energy to obtain a result
What is a machine?
A rigid bar that can pivit on a point called a fulcrum.
What is a lever?
A mechanism consisting of two toothed wheels.
What is a gear?
Usually elliptical shaped. They are attached to a shaft and as they rotate, they drive an element called the follower.
What is a cam?
A circular type of motion.
What is rotary motion?
It feeds energy TO the machine.
Wheels with grooved rims used to lift heavy load.
What are pulleys?
Two toothed wheels separated by a distance and connected by a chain that meshes with the teeth of the two wheels.
What is a chain and sprocket system?
A toothed bar that meshes with a pinion.
What is a rack?
A vertical or horizontal type of motion.
What is linear movement?
It recives the force produced in the machine.
What is the driven element?
A set of two wheels close together. Motion is transmitted between the wheels by the friction between them.
What are friction wheels?
The toothed wheel in a chain and ------- system.
What is a sprocket?
A rigid bar that is connected at one end to a crank.
What is a connecting rod?
A toothed wheel in a rack and -----.
What is a pinion?
Devices that transmit or convert motions.
What are mechanisms?
A system made up of two pulleys joined by a belt that slots into the grooved rim of the wheels.
What is a belt and pulley system?
A rotary transmission mechanism consisting of a worm and a toothed wheel.
What is a worm gear?
A handle attached at right angles to a shaft.
What is a crank?
In a screw and nut, the part that moves in a rotary movement.
What is a nut?
The ability to transform the motion.
What is converting?
A type of pulley whose axis of rotation is attached to a support that prevents it from moving.
What is a fixed pulley?
The toothed wheel in a worm gear.
What is a worm wheel?
A right angle shaft that can transmit motion to numerous sliders.
What is a crankshaft?
The toothed wheel located at the back of the bicycle.
What is a rear sprocket?