acceleration, any change in speed or direction. It is measured in metres per second per second (m/s/s)., acceleration due to gravity, A change in velocity due to gravitational force, average acceleration, The average change in velocity over a period of timeaverage speed, average speed, calculated by dividing distance travelled by time., average velocity, The average change in position over a period of time, displacement, measured in a straight line from the object's starting point to its end point., distance, How far an object has travelled, instantaneous speed, How fast an object is moving at a single moment, kinematics, The branch of physics that describes motion, scalar quantity, A quantity that has a size but not a direction, speed, calculated by measuring the distance travelled during a certain time., time, How long an object has travelled for, vector quantity, A quantity that has both a size and a direction, velocity, The speed of an object in a certain direction.

Kinematics

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