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7.1 & 8 vocab

a nonsolid state of matter in which the atoms or molecules are free to move past each other fluid
the amount of force exerted per unit area of a surface pressure
the SI unit of pressure pascal
the pressure caused by the weight of the atmosphere atmospheric pressure
the transfer of energy to an object by using a force that causes the object to move in the direction of the force work
the unit used to express energy joule
the unit used to express power watt
the rate at which energy is transferred power
a device that helps do work by eiether overcoming a force or changing the direction of the applied force machine
the work done on a machine work input
the work done by a machine work output
a number that tells how many times a machine multiplies force mechanical advantage
a quantity, usually expressed by a percentage, that measures the ratie of work output by work input mechanical effciency
a simple machine that consists of a bar that pivots at a fixed point called a fulcrum lever
simple machine that consists of two circular objects at different sizes wheel & axle
a simple machine that consists of a wheel over which a rope, chain, or wire passes pulley
a simple machine that is a straight, slated surface, which facilitates the raising of loads inclined plane
a simple machine that is made up of two inclined planes an that moves; often used for cutting wedge
a simple machine that consists of an inclined plane wrapped around a cylinder screw
a machine made of more than one simple machine compound machine
Created by: kfran0112