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# SLS Sci 10 motion SZ

TermDefinition
average velocity the rate of change in position
displacement describes the straight-line distance and direction from one point to another
distance a scalar quantity that describes the length of a path between two points or locations
position a vector quantity that describes a specific point relative to a reference point
position-time-graph when you plot the time data on the horizontal axis (called the x-axis) and the position data on the vertical axis (called the y-axis)
scalars has magnitude only
slope refers to whether a line is horizontal or goes up or down at an angle
speed the magnitude of the velocity
uniform motions travel equal displacements in equal time intervals
vectors has both a magnitude and a direction
velocity the displacement of an object during a time interval divided by the time interval
acceleration the rate of change in velocity
acceleration due to gravity 9.8m/s/s downwards
air resistance a friction-like force that opposes the motion of object that move through the air
average acceleration the slope of a velocity-time graph
change in velocity Vf - Vi
constant acceleration the object's velocity is changing at a constant rate
deceleration acceleration that is opposite to the direction of motion
gravity an attractive force that acts between two or more masses
velocity-time-graph provides information about the object's velocity and acceleration
Created by: schang2