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Circular Motion Quiz - Analysis, Forces, and Trajectories

Test your knowledge on circular motion, including analysis in different coordinate systems, forces involved, and trajectories of objects in motion.

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Circular Motion Quiz - Analysis, Forces, and Trajectories

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  1. Chapter 7

  2. A particle moves cw around a circle at constant speed for 2.0 s. It then reverses direction and moves ccw at half the original speed until it has traveled through the same angle. Which is the particle’s angle-versus-time graph? (1) (2) (3) (4)

  3. A particle moves cw around a circle at constant speed for 2.0 s. It then reverses direction and moves ccw at half the original speed until it has traveled through the same angle. Which is the particle’s angle-versus-time graph? (1) (2) (3) (4)

  4. Rank in order, from largest to smallest, the centripetal accelerations (ar)ato (ar)e of particles a to e. 1. (ar)b> (ar)e> (ar)a > (ar)d> (ar)c 2. (ar)b= (ar)e> (ar)a = (ar)c> (ar)d 3. (ar)b> (ar)a= (ar)c = (ar)e> (ar)d 4. (ar)b> (ar)a= (ar)a > (ar)e> (ar)d 5. (ar)b> (ar)e> (ar)a = (ar)c> (ar)d

  5. Rank in order, from largest to smallest, the centripetal accelerations (ar)ato (ar)e of particles a to e. 1. (ar)b> (ar)e> (ar)a > (ar)d> (ar)c 2. (ar)b= (ar)e> (ar)a = (ar)c> (ar)d 3. (ar)b> (ar)a= (ar)c = (ar)e> (ar)d 4. (ar)b> (ar)a= (ar)a > (ar)e> (ar)d 5. (ar)b> (ar)e> (ar)a = (ar)c> (ar)d

  6. A block on a string spins in a horizontal circle on a frictionless table. Rank order, from largest to smallest, the tensions Ta to Te acting on blocks a to e. 1. Tb > Ta > Td > Tc > Te 2. Td > Tb = Te > Tc > Ta 3. Te > Tc = Td > Ta = Tb 4. Te > Td > Tc > Tb > Ta 5. Td > Tb > Te > Tc > Ta

  7. A block on a string spins in a horizontal circle on a frictionless table. Rank order, from largest to smallest, the tensions Ta to Te acting on blocks a to e. 1. Tb > Ta > Td > Tc > Te 2. Td > Tb = Te > Tc > Ta 3. Te > Tc = Td > Ta = Tb 4. Te > Td > Tc > Tb > Ta 5. Td > Tb > Te > Tc > Ta

  8. A car is rolling over the top of a hill at speed v. At this instant, 1. n > w. 2. n = w. 3. n < w. 4. We can’t tell about n without knowing v.

  9. A car is rolling over the top of a hill at speed v. At this instant, 1. n > w. 2. n = w. 3. n < w. 4. We can’t tell about n without knowing v.

  10. A ball on a string is swung in a vertical circle. The string happens to break when it is parallel to the ground and the ball is moving up. Which trajectory does the ball follow? • a • b • c • d

  11. A ball on a string is swung in a vertical circle. The string happens to break when it is parallel to the ground and the ball is moving up. Which trajectory does the ball follow? • a • b • c • d

  12. Chapter 7 Reading Quiz

  13. Circular motion is best analyzed in a coordinate system with 1. x- and y-axes. 2. x-, y-, and z-axes. 3. x- and z-axes. 4. r-, t-, and z-axes.

  14. Circular motion is best analyzed in a coordinate system with 1. x- and y-axes. 2. x-, y-, and z-axes. 3. x- and z-axes. 4. r-, t-, and z-axes.

  15. The quantity with the symbol w is called 1. the circular weight. 2. the angular velocity. 3. the circular velocity. 4. the centripetal acceleration.

  16. The quantity with the symbol w is called 1. the circular weight. 2. the angular velocity. 3. the circular velocity. 4. the centripetal acceleration.

  17. For uniform circular motion, the net force 1. points toward the center of the circle. 2. points toward the outside of the circle. 3. is tangent to the circle. 4. is zero.

  18. For uniform circular motion, the net force 1. points toward the center of the circle. 2. points toward the outside of the circle. 3. is tangent to the circle. 4. is zero.

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