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Motion in 1 & 2 Dimensions REVIEW

Motion in 1 & 2 Dimensions REVIEW. What is the displacement of an object with a v vs. t graph of:. 15 m 15 cm -15 m 0.83 m -0.83 m. [Default] [MC Any] [MC All]. What is the acceleration of an object with a v vs. t graph of:. 15 m/s 2 15 cm/s 2 -15 m/s 2 0.83 m/s 2 -0.83 m/s 2.

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Motion in 1 & 2 Dimensions REVIEW

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  1. Motion in 1 & 2 Dimensions REVIEW

  2. What is the displacement of an object with a v vs. t graph of: • 15 m • 15 cm • -15 m • 0.83 m • -0.83 m [Default] [MC Any] [MC All]

  3. What is the acceleration of an object with a v vs. t graph of: • 15 m/s2 • 15 cm/s2 • -15 m/s2 • 0.83 m/s2 • -0.83 m/s2

  4. What best describes the motion of the object during the time interval of 4.0 s – 6.0 s? • Constant forward velocity • Constant negative velocity • No motion • Constant acceleration [Default] [MC Any] [MC All]

  5. A tortoise runs 4 meters forward in 3.5 sec and then turns around (instantaneously) and runs back to where it started in another 4.0 sec. What is the tortoise's average velocity? • 0 m/s • 1.1 m/s • 2.1 m/s • -2.1 m/s [Default] [MC Any] [MC All]

  6. A tortoise runs 4.0 meters forward in 3.5 sec and then turns around (instantaneously) and runs back to where it started in another 4.0 sec. What is the tortoise's average speed? • 0 m/s • 1.1 m/s • 2.1 m/s • -2.1 m/s [Default] [MC Any] [MC All]

  7. A man walks 3.5 m North, 6.9 m West and then 2.4 m South. What is his final displacement? • 12.8 m • 7.0 m at 81o N of W • 7.0 m at 81o W of N • 7.0 m at 9o S of E [Default] [MC Any] [MC All]

  8. Which of the following is an example of projectile motion? • Wonder Woman flying through the air. • A volleyball pounded over the net. • A paper airplane gliding through the air. • An airplane traveling from LA to Dallas.

  9. A rubber suction cup is fired horizontally from a toy gun, and another rubber suction cup is dropped simultaneously from the same height. Neglecting air resistance, which bullet hits the ground first? • The fired one. • The dropped one. • Both hit at the same time. [Default] [MC Any] [MC All]

  10. A battleship simultaneously fires two shells at enemy ships. If the shells follow the trajectories shown, which ship gets hit first? • A will be hit first. • B will be hit first. • Both will be hit at the same time. • It depends on the actual angles. [Default] [MC Any] [MC All]

  11. Two arrows are launched with the same velocity. One is launched straight up and the other is launched at 65o. Which hits the ground first? • The one launched straight up. • The one launched at 65o. • Both hit at the same time. • Need more information. [Default] [MC Any] [MC All]

  12. Does a ball dropped out of the window of a moving car take longer, shorter, or the same amount of time to reach the ground as one dropped at the same height from a car at rest? • Longer • Shorter • The same

  13. One penny is thrown upwards at a velocity , V, from the top of a building and another penny is thrown downwards from the top of the same building at a velocity of –V. Which hits the ground first? • The one thrown upwards. • The one thrown downwards. • They both hit at the same time. [Default] [MC Any] [MC All]

  14. One penny is thrown upwards at a velocity , V, from the top of a building and another penny is thrown downwards from the top of the same building at a velocity of –V. Which hits the ground with the largest final velocity? • The one thrown upwards. • The one thrown downwards. • The final velocities are the same. [Default] [MC Any] [MC All]

  15. Which ball spends the most time in the air? • Ball A • Ball B • They are the same. [Default] [MC Any] [MC All]

  16. Which ball has the greater launch speed? • Ball A • Ball B • They are the same. [Default] [MC Any] [MC All]

  17. Assuming air resistance is negligible, what happens to the horizontal velocity of a projectile after it is released? • Velocity decreases. • Velocity increases. • Velocity remains constant.

  18. A passenger on a bus moving east sees a man standing on a curb. From the passenger’s perspective, the man appears to be… • Not moving. • Moving East with a speed equal to the bus’s speed. • Moving North with a speed equal to the bus’s speed. • Moving West with a speed equal to the bus’s speed. [Default] [MC Any] [MC All]

  19. A piece of candy is dropped by a little girl running across the yard. From an observer’s perspective, the candy appears to fall • Straight down. • Parabolically forward. • Parabolically backward. • Straight backward. [Default] [MC Any] [MC All]

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