Interpreting Motion Graphically A few basics to remember… The slope of a position-time graph provides velocity information… Steeper = faster motion (position chaging at a faster rate) + slope = motion in the positive direction (positive value of velocity) - slope = motion in the negative direction (negative value of velocity)
Interpreting Motion Graphically The slope of a velocity-time graph provides acceleration information… Steeper = greater acceleration (velocity changing at a faster rate) + slope = acceleration in the positive direction (positive value of acceleration) ***Note: this does not necessarily mean moving in the positive direction - slope = acceleration in the negative direction (negative value of acceleration) ***Note: this does not necessarily mean moving in the negative direction
Not Moving: Position Velocity Acceleration time
(+) direction, constant v Position Velocity Acceleration time
(-) direction, constant v: Position Velocity Acceleration time
(+) direction, increasing speed: Position Velocity Acceleration time
(+) direction, slowing down: Position Velocity Acceleration time
(-) direction, increasing speed: Position Velocity Acceleration time
(-) direction, slowing down: Position Velocity Acceleration time
ALL OTHER GRAPHS ARE COMBINATIONS OF THE SEGMENTS PRESENTED ON THE PREVIOUS SLIDES…