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Chapter 4

Chapter 4. motion graphs. What are the three ways a car can accelerate?. speeding up slowing down turn the steering wheel. SI Units for motion. distance meters (m) time seconds (s) speed (m/s) velocity m/s and direction acceleration m/s 2. Position (distance) vs. Time Graphs.

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Chapter 4

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  1. Chapter 4 motion graphs

  2. What are the three ways a car can accelerate? • speeding up • slowing down • turn the steering wheel

  3. SI Units for motion • distance • meters (m) • time • seconds (s) • speed • (m/s) • velocity • m/s and direction • acceleration • m/s2

  4. Position (distance) vs. Time Graphs At rest, no change in position

  5. Position (distance) vs. Time Graphs The objects shown by the yellow and blue lines are covering equal amounts of distance in equal amounts of time. The velocity of the object can be calculated by evaluating the slope of each line, or one point along each line. Yellow line (constant speed of 3 m/s) Blue line (constant speed of 1 m/s)

  6. Position (distance) vs. Time Graphs The object represented by the yellow line is covering a greater amount of distance with each unit of time that passes. (it is speeding up) Changing distance over time or acceleration.

  7. Position (distance) vs. Time Graphs Constant speed

  8. Distance vs. Time Graphs Yellow line represents faster constant speed

  9. Distance vs. Time Graphs Slower then faster constant speed

  10. Distance vs. Time Graphs Constant speed, at rest, constant speed

  11. Velocity vs. Time Graphs Constant speed

  12. Velocity vs. Time Graphs Acceleration

  13. Velocity vs. Time Graphs Deceleration or negative acceleration

  14. Velocity vs. Time Graphs Yellow line represents faster acceleration

  15. Velocity vs. Time Graphs Constant speed of 30 m/s

  16. Velocity vs. Time Graphs Red line represents faster rate of deceleration (3 m/s2) .

  17. Velocity vs. Time Graphs Red line represents faster acceleration, blue line represents deceleration.

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