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Goal4Definitions

Science 5th Vocab

QuestionAnswer
speed how fast an objects position changes with time at any given moment
velocity the speed and direction of a moving object
gravity the force of attraction between any two objects due to their mass
inertia the tendency of a moving object to move in a straight line or of any object to resist a change in motion
friction a force that opposes the motion of one object moving past another
mass a measure of the amount of matter in an object
weight the force of gravity between earth and an object
action the force one object applies to a second
reaction the force with which an object responds to an action
force a push or pull exerted by one object on another, causing a change in motion
unbalanced forces that do not cancel each other out when acting together on a single object
balanced forces that cancel each other out when acting on a single object
simple a machine with few moving parts, making it easier to do work
lever a simple machine made of a rigid bar and a pivot point, called the fulcrum
fulcrum the pivot point of a lever
effort the part of a lever that applies force to the resistance arm
resistance the part of a lever that applies force to the load and the machine acts against
Created by: rierei1971
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