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Understanding Motion: Distance, Displacement, Speed, and Acceleration Analysis

This review challenges students to determine various motion parameters through a set of scenarios. It includes calculations for total distance traveled, displacement, speed, and acceleration of two individuals, Sally and Sam, over time. Each question prompts critical thinking and reinforces understanding of core concepts in physics. Key tasks cover determining who is moving faster, assessing movement speeds, and interpreting velocity data. Engage with the material to enhance your comprehension of motion dynamics in real-world contexts.

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Understanding Motion: Distance, Displacement, Speed, and Acceleration Analysis

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  1. Motion Review Challenge

  2. 15 m 4 m 10 m 10 m 6 m Start Finish What is the total distance traveled? Ans. 45 m

  3. 15 m 4 m 10 m 10 m 6 m Start Finish What is the displacement? Ans. 5 m right

  4. Sally Sam position 0 0 time Who is moving faster? Ans. Sally

  5. Who starts out ahead? Sally Sam position 0 0 time Ans. Sally

  6. 32 24 Sam 16 position (m) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) What is Sam’s speed? Ans. 2 m/s

  7. What is Sally’s speed at t = 8 s? 32 24 Sally 16 velocity (m/s) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) Ans. 16 m/s

  8. 32 24 16 position (m) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) What is the displacement? Ans. +8 m

  9. What is the total distance traveled? 32 24 16 position (m) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) Ans. 48 m

  10. 32 24 16 position (m) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) What is the average speed for the first 10 seconds? Ans. 1.6 m/s

  11. 32 24 16 position (m) 8 0 16 18 0 2 4 14 6 10 8 12 time (s) What is the fastest speed traveled? Ans. 10 m/s

  12. 4 2 0 velocity (m/s) -2 -4 16 18 0 2 4 14 6 10 8 12 time (s) What is the displacement? Ans. 36 m

  13. 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 6 8 0 4 2 time (s) What is the velocity of the object at t = 11 s? Ans. -3 m/s

  14. What is the displacement of the object for the entire trip? 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 6 8 0 4 2 time (s) Ans. 12 m

  15. What is the acceleration of the object? 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 18 6 8 0 4 2 time (s) Ans. 0

  16. What is the acceleration of the object? 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 6 8 0 4 2 time (s) Ans. 1/3 m/s2

  17. What is the object doing? 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 6 8 0 4 2 time (s) Ans. Slowing down

  18. What is the object doing? 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 6 0 8 4 2 time (s) Ans. Speeding up

  19. Ans. D

  20. Ans. C

  21. Ans. E

  22. Ans. B

  23. Ans. D

  24. Ans. B

  25. Ans. D

  26. What is the velocity of the object? Ans. 32 m/s Position (m) Time (s)

  27. Describe (in words) how to match this graph. 4 2 velocity (m/s) 0 -2 -4 12 16 10 14 18 6 0 8 4 2 time (s) Ans. Move away from detector at constant speed of 2 m/s for 9 s, then move toward detector at constant speed of 1 m/s for 9 s

  28. 8 6 position (m) 4 2 0 12 16 10 14 18 6 0 8 4 2 time (s) Describe (in words) how to match this graph. Ans. Move forward at constant speed (4/9 m/s) for 9 s, stop moving for 4 s, then move forward at constant speed (1 m/s) for 2 s

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