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Unit 1, Motion

TermDefinition
Position describes the location of an object.
Reference Point a location to which you compare other locations.
Motion a change in position over time.
Speed a measure of how far something moves in a given amount of time.
Vector a quantity that has both size and direction.
Velocity a speed in a specific direction.
Acceleration the rate at which velocity changes.
centripetal acceleration acceleration in a circular motion.
force push or pull
net force the combination of all forces acting on an object.
inertia the tendency of all objects to resist a change in motion.
gravity a force of attraction between objects due to their mass.
free fall when gravity is pulling an object down and no other forces are reacting on it.
orbit when an object travels around another object in space.
fluid any material that can flow and that takes the shape of a container.
pressure the measure of how much force is acting on a given area.
pascal the unit used for pressure
atmospheric pressure the pressure caused by the weight of the atmosphere.
buoyant force an upward force that fluids exert on all matter.
Archimede's principle states that the buoyant force acting on an object in a fluid is an upward force equal to the weight of fluid that the object displays.
Created by: 18kohlv1021
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