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Science Motion Vocab

Chapter 11 vocab

QuestionAnswer
simple machine a machine made up of 1 or 2 parts
acceleration the rate of which the speed or direction of motion of an object changes over time
friction the force that results when 2 materials rub against each other or when their contact prevents sliding
lever a machine with a bar that moves around a fixed point or support
contact force a force that requires 2 pieces of matter to touch
wedge a machine that can be made up of 1 or 2 inclined planes
force a push or a pull that acts on an object
non-contact force a force that acts at a distance
inclined plane a machine consisting of a flat surface with one end higher than the other
inertia the tendency of an object to resist any change in motion
uniform motion motion where the speed and direction do not change
wheel and axle a machine made up of a circular object attached to a bar
gravity the force of attraction (the pull) between any two objects
screw A machine consisting of a smooth cylinder with a tiny inclined plane wrapped around it
Created by: kniewoehner
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