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# moving objects bloom

### chapter 3 moving objects bloom 6 science

force a push or a pull
gravity the force of attraction that exists between any two objects
mass the amount of matter in an object
weight a measure of the pull of gravity on an objects mass
newton in the metric system the unit used to measure force or weight
net force the combination of all the forces acting on an object
balanced forces equal forces acting in opposite directions
relative motion the change in position of one object compared to the position of another
frame of reference the object an observer uses to detect motion
speed the distance an object moves in a certain period of time
instantaneous speed the speed at any given point
speedometer a device that shows instantaneous speed
velocity a measure of both speed and direction of a moving object
acceleration the change in velocity during a particular time period
law a statement that describes events or relationships that exist in nature
inertia the resistance of an object to change in its state of motion
friction the force between surfaces that resists the movement of one surface past the other surface
air resistance the friction from air molecules hitting an object as the object moves through the air
tanner weinfurtner
Created by: tanner wein
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