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Early Motion Review

QuestionAnswer
motion change in position
frame of reference set of parameters used to specify an object's position and motion
scalar quantity quantity that includes magnitude only
vector quantity quantity that included magnitude and direction
distance total path of motion
displacement shortest path of motion between 2 points
speed distance/ time
velocity displacement/ time
Pythagorean theorem used to find magnitude of displacement in 90 degree motion
TOA and tan^-1 used to find direction/degrees of displacement in 90 degree motion
physics study of the nature and properties of matter and energy
seconds SI unit for time
meters SI unit for distance/length
south and west are considered "negative" directions
north and east are considered "positive" directions
positive slope how to recognize motion in positive direction on PT graph
negative slope how to recognize motion in negative direction on PT graph
line segments above x-axis how to recognize motion in positive direction on VT graph
line segments below x-axis how to recognize motion in negative direction on VT graph
line segments have positive and negative slope how to recognize change in direction on a PT graph
line segment(s) cross the x-axis how to recognize change in direction on a VT graph
speed up , slow down , change direction 3 ways to accelerate
m/s^2 SI unit for acceleration
at rest ; return to starting position 2 ways to have zero displacement
Created by: cadetjt
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