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1-D Kinemat.

1-D Kinematics

What is a Coordinate System? A coordinate system is a grid usually with an X and Y Axis that helps determine movement of an object. North = Positive Y-Axis South = Negative Y-Axis East = Positive X-Axis West = Negative X-Axis
What is a scalar quantity? Give an example. A scalar quantity only represents magnitude (or size) of a measurement. Ex. Time - 60 seconds Speed - 50mph Distance - 60m
What is a vector quantity? Give an example. A vector quantity represents magnitude (or size) and direction of a measurement. Ex. Velocity = 60mph East Displacement = -45m to the West Momentum = -60kgm/s
What is magnitude? Magnitude = size of a measurement. **Think magnitude of earthquakes!
What is velocity? Velocity describes an object's speed and direction. Equation: Velocity = Displacement/time Unit: m/s (Meters/second)
What is speed? Speed describes an object's rate of motion. Distance traveled over a given time period. Speed = distance/time
What is displacement? Displacement is a vector measurement of distance traveled from the origin, or starting point. This is how far you are away from the origin. Ex. If you ran all the way around a track (Started and stopped in the same spot) Displacement = 0m
What is distance? Distance is a scalar measurement of distance traveled from the origin. This is how far you have moved total. Ex. If you ran all the way around a track (Started and stopped in the same spot) Distance = 400m
Time A unit of measurement for a period of time is seconds.
Terminal velocity The maximum speed an object can reach because of the air resistance acting on the object.
What is acceleration? Acceleration measures the change in velocity over a given time period. Acceleration IS a change in velocity. *Change in speed OR change in direction. Equation- a=∆V/t a - acceleration ∆V - change in velocity t - time units = m/s/s
Created by: becook87
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