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Motion Vocabulary
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Gravity
Terms in this set (19)
Motion
An object's change in position relative to a reference point.
position
the location of an object relative to a reference point
reference point
an unmoving place or object used for comparison to determine if an object is in motion.
distance
the total length of the route an object travels when it moves.
Displacement
Distance and direction of an object's change in position from the starting point.
meter
The basic SI unit of length
Kinematics
the study of how things move
Speed
The distance an object travels per unit of time
averge speed
the total distance traveled divided by the time it takes to travel that distance
Instaneous speed
the speed of an object at one instant of time
constant speed
speed that stays the same and does not change
Velocity
Speed in a given direction
Scaler
Magnitude (size or distance) alone
Vector
A quantity that has magnitude and direction
Acceleration
the rate at which velocity changes overtime; an object accelerates if its speed, direction, or both change.
Decleration
negative acceleration--Slowing down
Slope of a line
Rise over run
linear relationship
a relationship that graphs as a straight line
nonlinear relationship
Relationship that graphs as a curved line
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