Term
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Definition
| total path length from the starting point to end point, scalar quantity, symbol s, unit m |
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Term
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Definition
| straight line distance from the starting point to end point (distance traveled in a particular direction), vector quantity, symbol s, unit m |
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Term
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Definition
| distance traveled divided by the time elapsed, scalar quantity, symbol v, unit m/s |
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Term
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Definition
| displacement traveled divided by time elapsed, vector quantity (direction same as displacement), symbol v, unit m/s |
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Term
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Definition
| total displacement divided by the time elapsed |
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Term
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Definition
| displacement per unit time at a particular point in time |
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Term
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Definition
| when displacement per unit time is the same for every moment of time |
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Term
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Definition
| change in velocity per unit time, vector quantity (may or may not have same direction as velocity), symbol a, unit m/s^2 |
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Term
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Definition
| when an object is thrown up, thrown down, or dropped |
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Term
| Newton's First Law of Motion: Law of Inertia |
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Definition
a) a body at rest will remain at rest unless acted upon by an unbalanced or net force
b) a body moving at uniform velocity will remain that way unless acted upon by an unbalanced or net force |
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Term
| Newton's Second Law of Motion |
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Definition
| an unbalanced or net force causes an acceleration which is directly proportional to the force and inversely proportional to the mass of the object, formula: Fnet=m*a |
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Term
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Definition
| a push or pull applied to an object, a vector quantity (direction is the same as the direction of acceleration), unit is N, symbol F |
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Definition
| the measure of the gravitational force acting on an object, formula: Fw=m*g |
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Term
| Newton's Third Law of Motion: Action-Reaction |
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Definition
| if object A exerts a force on object B, object B will exert an equal but opposite force on object A |
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Term
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Definition
| the object which exerts a force on the other |
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Term
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Definition
| the object that exerts an equal but opposite force on the action force |
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Term
| Newton's Law of Universal Gravitation |
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Definition
| law that states that every object in the universe attracts every other object with a force which is directly proportional to the produce of their masses and inversely proportional to the square of the distance between their centers (approximately true when the objects are massive and far apart, absolutely true when objects are point masses), formula: Fg=(G*m1*m2)/s^2 (right side of formula comes to N) |
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Term
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Definition
| a region of space around a mass in which another mass feels a force |
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Term
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Definition
| 1.0 kg mass used to test gravitational field |
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Term
| gravitational field strength |
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Definition
| the force felt by a 1.0 kg mass when place at a certain location in a gravitational field, vector quantity (direction is to the center of the celestial body causing the field), symbol g, at surface of earth g=9.8 N/kg |
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Term
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Definition
| occurs for objects in free fall when the force of gravity pulling the object down equals the force of the air pushing the object up, Fnet=0, a=0, and the velocity is uniform |
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