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**The One-Dimensional Motion Game**

Lots of fun! Win valuable prizes!

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**The displacement of the particle does not depend on**

1. A particle travels along a curved path between two points P and Q as shown. The displacement of the particle does not depend on the location of P. the location of Q. the distance traveled from P to Q. the shortest distance between P and Q. the direction of Q from P.

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2. If the average velocity of a particle is zero in some time interval, what can you say about its displacement for that interval? It is a scalar quantity It can be either positive or negative It is zero It has direction but no magnitude

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**3. Which one of the following situations is not possible?**

A body travels with a northward velocity and a northward acceleration. A body travels with a northward velocity and a southward acceleration. A body travels with a constant velocity and a time-varying acceleration. A body travels with a constant acceleration and a time-varying velocity.

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**4. What motion is represented by the red line in the graph below?**

A ball is thrown straight up from a pit and caught at ground level. A ball is moving in the negative direction and slows to a stop. A ball speeds up in the negative direction. A ball starts at a negative position and moves with constant velocity to the zero position. velocity time + -

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**5. A ball is thrown into the air**

5. A ball is thrown into the air. At the ball’s maximum altitude where its velocity is zero, its acceleration is zero changing from upward to downward changing from downward to upward directed upward directed downward

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**6. In which part of the graph is the object’s velocity zero. a. AB b**

6. In which part of the graph is the object’s velocity zero? a. AB b. BC c. CD d. DE e. Two are correct.

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**7. In which part of the graph does the object have a negative velocity**

7. In which part of the graph does the object have a negative velocity? a. AB b. BC c. CD d. DE e. Two are correct.

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**8. The velocity of the object during part CD is a. 6 m/s b. 8 m/s c**

8. The velocity of the object during part CD is a. 6 m/s b. 8 m/s c. 10 m/s d. 40 m/s e. Two are correct.

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**9. During which time interval did the object have a positive velocity**

9. During which time interval did the object have a positive velocity? a. AB b. BC c. CD d. DE e. Two are correct.

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**The following graphs show how the velocity of a car changes over time.**

10. During which time interval was the car stopped? a. 0 – 0.2 h b. 0.2 – 0.4 h c. 0.4 – 0.7 h d. 0.7 – 0.8 h e. 0.8 – 1.0 h

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**11. During which time did the car have the greatest velocity. a. 0 – 0**

11. During which time did the car have the greatest velocity? a. 0 – 0.2 h b. 0.2 – 0.4 h c. 0.4 – 0.7 h d. 0.7 – 0.8 h e. 0.8 – 1.0 h

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**12. What was the greatest velocity attained by the car. a. 0 km/hr b**

12. What was the greatest velocity attained by the car? a. 0 km/hr b. 20 km/hr c. 40 km/hr d. 60 km/hr

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13. During which time interval did the car have a negative acceleration? a. 0 – 0.2 h b. 0.2 – 0.4 h c. 0.4 – 0.7 h d. 0.7 – 0.8 h e. 0.8 – 1.0 h

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**14. How far did the car travel during the first 0. 2 hours. a. 30 km b**

14. How far did the car travel during the first 0.2 hours? a. 30 km b. 6 km c. 60 km d. 120 km

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**15. How fast was the car going at 1. 0 hour. a. 0 km/h b. 20 km/h c**

15. How fast was the car going at 1.0 hour? a. 0 km/h b. 20 km/h c. 40 km/h d. 60 km/h

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16. By dragging his toe, a roller skater can slow from 16 m/s to rest in 2.5 s. How many meters away from a wall must the roller skater start dragging his toe in order to stop before hitting the wall?

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17. An automobile with an initial velocity of 25 m/s accelerates uniformly at m/s2. What is its final velocity after 4.0 s?

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**18. A car accelerates from rest at a rate of 2. 3 m/s2**

18. A car accelerates from rest at a rate of 2.3 m/s2. What is its velocity after traveling 25 m?

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19. On a football field Louie runs from the 40 yard line to the 15 yard line at a velocity of – 6.0 yd/s. How much time does it take Louie to run this distance? (He’s running toward the nearest end zone.)

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**20. A boat accelerates from 23 m/s to 5. 0 m/s in 13. 4 s**

20. A boat accelerates from 23 m/s to 5.0 m/s in 13.4 s. What is its acceleration?

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**21. A cat falls off a ledge that’s 3. 0 m tall**

21. A cat falls off a ledge that’s 3.0 m tall. How long will it take to hit the ground?

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Bonus question time! Your host will tell each team its score. Each team can wager up to their total points.

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Bonus question 21. A ball is thrown straight up with a speed of 22 m/s. What is the maximum height the ball reaches?

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