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Equations of Motion

SPH3U Exam Review. Equations of Motion. Scalars vs. Vectors. 1. Which of the following quantities is a scalar? A. acceleration B. force C. velocity D. work. Scalars vs. Vectors. 1. Which of the following quantities is a scalar? A. acceleration B. force C. velocity *D. work.

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Equations of Motion

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  1. SPH3U Exam Review Equations of Motion

  2. Scalars vs. Vectors 1. Which of the following quantities is a scalar? A. acceleration B. force C. velocity D. work

  3. Scalars vs. Vectors 1. Which of the following quantities is a scalar? A. acceleration B. force C. velocity *D. work

  4. Motion in 2D 2. Ms. Rosebery walks 1.0 km [N] and 1.0 km [E]. Her displacement is: A. 1.0 km [NE] B. 1.4 km [NE] C. 2.0 km [NE] D. impossible to determine

  5. Motion in 2D 2. Ms. Rosebery walks 1.0 km [N] and 1.0 km [E]. Her displacement is: A. 1.0 km [NE] *B. 1.4 km [NE] C. 2.0 km [NE] D. impossible to determine

  6. Average Velocity 3. A jogger runs 400 m completely around a track in 80 s. Her average velocity is: A. zero B. 0.2 m/s C. 5 m/s D. impossible to determine

  7. Average Velocity 3. A jogger runs 400 m completely around a track in 80 s. Her average velocity is: *A. zero B. 0.2 m/s C. 5 m/s D. impossible to determine

  8. Relative Motion 4. Snail A is travelling at 0.001 m/s [E] toward Snail B, travelling at 0.001 m/s [W]. What is the velocity of Snail A relative to Snail B? A. zero B. 0.001 m/s [E] C. 0.002 m/s [E] D. 0.002 m/s [W]

  9. Relative Motion 4. Snail A is travelling at 0.001 m/s [E] toward Snail B, travelling at 0.001 m/s [W]. What is the velocity of Snail A relative to Snail B? A. zero B. 0.001 m/s [E] *C. 0.002 m/s [E] D. 0.002 m/s [W]

  10. Unit Analysis 5. (km/h)/s are units of: A. acceleration B. displacement C. force D. velocity

  11. Unit Analysis 5. (km/h)/s are units of: *A. acceleration B. displacement C. force D. velocity

  12. Acceleration 6. Ms. Rosebery is driving at 20 m/s [N] when she hits the brakes and comes to a complete stop in 10 s. Her acceleration while she is braking is: A. 0 B. 2 m/s2 [N] C. 2 m/s2 [S] D. It cannot be determined.

  13. Acceleration 6. Ms. Rosebery is driving at 20 m/s [N] when she hits the brakes and comes to a complete stop in 10 s. Her acceleration while she is braking is: A. 0 B. 2 m/s2 [N] *C. 2 m/s2 [S] D. It cannot be determined.

  14. Rearranging Equations

  15. Rearranging Equations

  16. Final Velocity 8. An object with an initial velocity of 4.0 m/s [N] is accelerated at 2.0 m/s2 [S] for 2.0 s. What is the final velocity of the object? A. 4.0 m/s [S] B. 8.0 m/s [N] C. 8.0 m/s [S] D. zero

  17. Final Velocity 8. An object with an initial velocity of 4.0 m/s [N] is accelerated at 2.0 m/s2 [S] for 2.0 s. What is the final velocity of the object? A. 4.0 m/s [S] B. 8.0 m/s [N] C. 8.0 m/s [S] *D. zero

  18. Free-Fall 9. A ball is dropped from some height. Neglecting air resistance, while the ball is falling, the magnitude of its velocity increases and the magnitude of its acceleration: A. increases B. decreases C. is zero D. is a non-zero constant

  19. Free-Fall 9. A ball is dropped from some height. Neglecting air resistance, while the ball is falling, the magnitude of its velocity increases and the magnitude of its acceleration: A. increases B. decreases C. is zero *D. is a non-zero constant

  20. Gravity On the surface of the moon, the acceleration due to gravity is 1.6 m/s2 [down]. If an astronaut standing on the surface of the moon throws a tennis ball up into the air, the tennis ball will take _________ time to come down compared to the time it would take on Earth. A. less B. more C. the same D. It would not come down.

  21. Gravity On the surface of the moon, the acceleration due to gravity is 1.6 m/s2 [down]. If an astronaut standing on the surface of the moon throws a tennis ball up into the air, the tennis ball will take _________ time to come down compared to the time it would take on Earth. A. less *B. more C. the same D. It would not come down.

  22. Velocity vs. Acceleration A ball rolls down an incline as shown in the diagram at right. Describe what is happening to the velocity and the acceleration of the ball as it is rolling.

  23. Velocity vs. Acceleration A ball rolls down an incline as shown in the diagram at right. Describe what is happening to the velocity and the acceleration of the ball as it is rolling. The velocity increases. The acceleration decreases.

  24. Distance vs. Displacement Ms. Rosebery walked around a lecture table as shown in the diagram at right. Explain why the question, “How far did she go?” is ambiguous. “How far” could refer either to distance travelled (6 m) or the magnitude of the displacement (2 m)

  25. Problem Solving 1 A vehicle with an initial velocity of 24 m/s [N] brakes and stops in 5.0 s. (a) What is the acceleration of the vehicle? (b) What is the displacement of the vehicle during those 5.0 s?

  26. Problem Solving 1 A vehicle with an initial velocity of 24 m/s [N] brakes and stops in 5.0 s. (a) What is the acceleration of the vehicle?

  27. Problem Solving 1 (b) What is the displacement of the vehicle during those 5.0 s?

  28. Problem Solving 2 An object is dropped off the roof of a building. If the building is 65 m tall, (a) how long does it take the object to hit the ground and (b) what is the velocity of the object when it hits the ground?

  29. Problem Solving 2 An object is dropped off the roof of a building. If the building is 65 m tall, (a) how long does it take the object to hit the ground?

  30. Problem Solving 2 (b) what is the velocity of the object when it hits the ground?

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