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PS Chp 11:Kinematics

PS Chapter 11: Kinematics Coach Leach

TermDefinition
mechanics The study of motion.
system A portion of a larger motion that we are interested in studying.
frame of reference A coordinate system used to describe the motion of an object.
kinematics The study of how things move.
distance How far an object moves during a time interval.
displacement A vector quantity that describes a change in position.
speed A scalar quantity indicating the rate at which an object moves.
velocity A vector quantity indicating the rate at which an object's position changes.
acceleration The rate of change in velocity.
scalar A measurable quantity that consists of magnitude only.
vector A measurable quantity with both magnitude and direction.
momentum A property of a moving system that is equal to its velocity times its mass.
free fall The motion of an object that falls due to gravity alone, with no other forces acting on it.
circular motion Movement along a circular path.
centripetal acceleration Acceleration that causes an object to move along a circular path.
projectile motion The two-dimensional motion of any flying object whose path is determined by the influence of an external force only, such as gravity.
trajectory The curved path of a projectile.
Created by: CoachLeach
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