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unit 2 lesson 1,2,3

unit 2

question Answer
use of force to move an object some distance in the direction of the force work
the ability to do work energy
the rate at which work is done power
energy of motion kinetic energy
energy an object has because of its position, condition, or chemical composition potential energy
energy possessed by an object due to its motion and position mechanical energy
any device that helps people do work by changing the way work is done machine
number of times the machine multiplies the input force mechanical advantage
comparison of a machine's output with the work input mechanical efficiency
simple machine that has a bar that pivots at a fixed point lever
what the fixed point is called fulcrum
simple machine that is made of a wheel connected to a smaller cylindrical object, the axle wheel and axle
simple machine that has a grooved wheel that holds a rope or cable pulley
simple machine that is a straight, slanted surface inclined plane
Created by: 18aschrick0711
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