Kinematics

Physical Quantity

a property of an object that can be measured with a measuring instrument

Scaler Quantity

A physical quantity that has magnitude only

Vector quantity

a physical quantity that has both magnitude and direction

Position

an object's location relative to a reference point

frame of reference

A reference point combined with a set of directions

rectilinear motion

motion along a straight line

Distance

The length of path travelled

Displacements

A change in position

Speed

rate of change of distance

Velocity

The rate of change of position

instantaneous velocity

The velocity of an object at a precise moment

Acceleration

rate of change of velocity