Kinematic Graphing

Graphs

spatial-spatial and spatial-temporal

Spatial-Spatial Graph

represent one plane with each axis representing a direction within that plane

Spatial-Temporal Graph

represents one direction within a plane plotted against time (position time graph)

Kinematics

the motion of a body in terms of position, displacement, velocity and acceleration without reference to the focus causing the motion

Segment

a predefined portion of a whole object

Position

location of an object relative to some reference

Displacement

vector quantity representing in magnitude and direction the difference in position of two points - measured in metres

Position Time Graph

direction of the slope tell us the velocity

Position Time Graph - Positive Slope

positive velocity

Position Time Graph - Flat Line

velocity = 0

Position Time Graph - Negative Slope

negative velocity

Position Time Graph - Steeper Slope

higher magnitude

Velocity

rate of change in position with respect to time, measured in meters per sec (m/s)

What does velocity indicate

how rapidly the change in position occurred and the direction in which it took place

Acceleration

rate of change of velocity, measured in meters per second per second (m/s2)

0 acceleration

constant speed

Negative acceleration

slowing down

Positive acceleration

speeding up