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Machines 1

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Created by:

Spieringsk  on February 24, 2012

Subjects:

Physical Science

Description:

Machines & Force, Ripon High School, Spierings, Physical Science, Spring 2012

Classes:

CP - Physical Science 12-13, Physical Science

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Last Message: 16 months ago
yesmanboringschool : both high scores for scatter on machines

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Machines 1

Machine
A device that changes a force
1/18

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18 terms

Terms

Definitions

Machine A device that changes a force
Input Force The force that one applies to the machine
Output Force The force that the machine exerts
Lever A rigid bar that is free to move about a fixed point
Fulcrum The fixed point that the bar rotates about
Input Arm The distance between the input force and the fulcrum
Output Arm The distance between the output force and the fulcrum
First Class Lever A lever where the fulcrum is located between the input force and the output force
Second Class Lever A lever where the output force is between the input force and the fulcrum
Third Class Lever A lever where the input force is located between the fulcrum and the output force
Wheel and Axle A machine that consists of two disks or cylinders, each with a different radius.
Inclined Plane A slanted surface along which a force moves an object to a different elevation
Wedge A V-shaped object whose sides are two inclined planes sloped toward each other
Screws An inclined plane wrapped around a cylinder.
Pulley A machine that consists of a rope that fits into a groove in a wheel
Fixed Pulley changes only the direction of the input force
Moveable Pulley Changes both the direction and the size of the input force
Pulley Systems A combination of pulleys made up of both fixed and movable pulleys and changes both direction and magnitude of the input force