Speed – Time Graphs. SlopeExampleInterpretation high positive value high acceleration rapid increase in speed low positive value low acceleration slow.

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Presentation transcript:

Speed – Time Graphs

SlopeExampleInterpretation high positive value high acceleration rapid increase in speed low positive value low acceleration slow increase in speed zero no acceleration constant speed negative value negative acceleration slowing down v v v v t t t t

Graph the following data on a speed – time graph. Speed (m/s) Time (s) time (s) speed (m/s) Calculate the acceleration of the above object.

The area underneath the line of a speed – time graph represents distance time (s) speed (m/s) Calculate the acceleration of the above object. Calculate the distance the object travelled.

Comparison of d-t, v-t, and a-t graphs Further comparison of d-t, v-t and a-t graphs Motion animation Physics Classroom – 1D Kinematics

Interpreting Velocity – Time Graphs 0 [W] [E] Travelling [W] Accelerating Travelling [E] Accelerating velocity (m/s) time (s)

Interpreting Velocity – Time Graphs 0 [W] [E] Travelling [W] Decelerating Travelling [E] Decelerating time (s) velocity (m/s)

Interpreting Velocity – Time Graphs 0 [W] [E] Constant velocity [W] Constant velocity [E] time (s) velocity (m/s)

Interpreting Velocity – Time Graphs 0 [W] [E] Travelling [E] decelerating Travelling [W] accelerating time (s) velocity (m/s)

Interpreting Velocity – Time Graphs 0 [W] [E] Travelling [W] Decelerating Travelling [E] Accelerating time (s) velocity (m/s)

Interpreting Velocity – Time Graphs 0 [up] [down] Ball thrown up in the air Ball coming back towards earth time (s) velocity (m/s)