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Speed, Velocity, Acceleration. Speed. The distance traveled by an object in a given amount of time. How fast an object is traveling. Speed = distance ÷ time. Speed Graph- Not moving. The graph shows an object not changing its distance, so there is no motion. Distance. Time.

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Speed
Speed

  • The distance traveled by an object in a given amount of time.

  • How fast an object is traveling.

  • Speed = distance ÷ time


Speed graph not moving
Speed Graph- Not moving

  • The graph shows an object not changing its distance, so there is no motion.

Distance

Time


Speed graph constant
Speed Graph- Constant

  • The graph shows an object moving at a constant speed. (the graph is straight diagonal line)

Distance

Distance

Time

Time


Speed graph not constant
Speed Graph- Not Constant

  • The graph shows an object NOT moving at a constant speed.


Velocity
Velocity

  • An object’s speed and direction at a given instant.

  • Speed + Direction

50 m/s to the East


Velocity graphs
Velocity Graphs

  • The graph below graphs an object’s velocity.

    What is happening to the object’s velocity?

    What is different about this graph from the others we have looked at?

Speed

Time


Acceleration
Acceleration

  • Change in an object’s speed or direction (its velocity) over time.

  • Speeds up, slows down

  • Turns around, makes a turn


Acceleration graph distance vs time
Acceleration Graph Distance vs. Time

  • The graph below shows an object accelerating (curved line on distance vs. time graph)


Acceleration graphs velocity speed vs time
Acceleration GraphsVelocity (speed) vs. Time

  • The graph below shows an object accelerating (diagonal line on a speed vs. time graph)


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