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Marking Period One Review

Marking Period One Review. v v v v. Which graph above best shows constant velocity motion?. e) none of them. t. t. t. t. a. b. c. d. Answer: b. Marking Period One Review. x x x x.

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Marking Period One Review

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  1. Marking Period One Review v v v v Which graph above best shows constant velocity motion? e) none of them t t t t a b c d Answer: b

  2. Marking Period One Review x x x x Which graph above best shows constant velocity motion? e) none of them t t t t a b c d Answer: a

  3. Marking Period One Review a a a a Which graph above best shows constant velocity motion? e) none of them t t t t a b c d Answer: e

  4. Marking Period One Review a a a a Which graph above best shows uniformly accelerated motion? e) none of them t t t t a b c d Answer: b

  5. Marking Period One Review x x x x Which graph above best shows uniformly accelerated motion? e) none of them t t t t a b c d Answer: c

  6. Marking Period One Review v v v v Which graph above best shows uniformly accelerated motion? e) none of them t t t t a b c d Answer: a

  7. Marking Period One Review v v v v A projectile is shot at an angle to the ground. It goes up and lands at its original level. Which graph above best shows the horizontal component of its velocity? e) none of them t t t t a b c d Answer: b

  8. Marking Period One Review v v v v A projectile is shot at an angle to the ground. It goes up and lands at its original level. Which graph above best shows the vertical component of its velocity? e) none of them t t t t a b c d Answer: a

  9. Marking Period One Review y y y y A projectile is shot at an angle to the ground. It goes up and lands at its original level. Which graph above best shows the vertical position vs. time? e) none of them t t t t a b c d Answer: d

  10. Marking Period One Review x x x x A projectile is shot at an angle to the ground. It goes up and lands at its original level. Which graph above best shows the horizontal position vs. time? e) none of them t t t t a b c d Answer: a

  11. Marking Period One Review • Mike Piazza breaks a bat over Roger Clemens head. Which feels a greater force: • a) Clemens’ head • b) the bat • c) they feel the same amount of force Answer: c

  12. Marking Period One Review • Velocity is: • A) the rate of change of acceleration • B) the rate of change of velocity • C) the rate of displacement • D) none of the above Answer: c

  13. Marking Period One Review • Acceleration is: • A) the rate of change of acceleration • B) the rate of change of velocity • C) the rate of change of position • D) the change in position • E) none of the above Answer: B

  14. Marking Period One Review • Displacement is: • A) the rate of change of acceleration • B) the rate of change of velocity • C) the rate of change of position • D) the change in position • E) none of the above Answer: D

  15. Marking Period One Review A ball accelerates uniformly down an incline. It starts from rest and rolls 2 m in the first second. How far does it roll in the next second? a) 2 m b) 3 mc) 4 m d) 5 me) 6 m Answer: e

  16. Marking Period One Review What is the car’s velocity at t = 5 s? a) 2.5 m/s b) -2.5 m/sc) 5 m/sd) 1 m/se) 10 m/s Position (m) Answer: a

  17. Marking Period One Review What is the total distance traveled during the 12 seconds? a) 0 m b) -2.5 mc) 20 md) 40 me) 1.75 m Position (m) Answer: d

  18. Marking Period One Review What is the acceleration at t = 8 seconds? a) -7.5 m/s2 b) 7.5 m/s2c) -1.5 m/s2d) 12.5 m/s2e) 0 m/s2 Position (m) Answer: e

  19. Marking Period One Review Velocity (m/s) What is the acceleration at t = 30 seconds? a) 25 m/s2 b) 0.5 m/s2c) -0.5 m/s2d) 0 m/s2e) 30 m/s2 Answer: b

  20. Marking Period One Review Velocity (m/s) What is the displacement during the first 30 seconds? a) 525 m b) 600 m c) 25 m d) 750 me) 30 m Answer: a

  21. Marking Period One Review 12 10 C 8 D A 6 x (m) At what two points is the velocity positive? a) A & B b) C & D c) B & E d) A & De) B & D B E 4 2 10 15 30 5 20 25 35 40 Time (s) Answer: a

  22. Marking Period One Review 12 10 C 8 D A 6 x (m) At what two points is the acceleration positive? a) A & B b) C & D c) B & E d) A & De) B & D B E 4 2 10 15 30 5 20 25 35 40 Time (s) Answer: e

  23. Marking Period One Review A rectangular table top is measured to be 1.7 m by 2 m. To the correct number of significant figures, what is the area of the table top. a) 4.0 m2 b) 3.0 m2 c) 3 m2 d) 3.4 m2 e) 3.7 m2 Answer: c

  24. C A Marking Period One Review Which vector below best shows the sum A + C? a) b) c) d) e) Answer: d

  25. C A Marking Period One Review Which vector below best shows A - C? a) b) c) d) e) Answer: a

  26. Marking Period One Review • Acceleration is: • A) the rate of change of acceleration • B) the rate of change of velocity • C) the rate of displacement • D) none of the above Answer: B

  27. Marking Period One Review • A projectile is shot on level ground at a 45o angle. If it has an initial vertical velocity of 30 m/s, how long will it be in the air? • A) 3 s • B) 6 s • C) 2.45 s • D) -6 s Answer: B

  28. Marking Period One Review • A projectile is shot on level ground at a 45o angle. If it has an initial vertical velocity of 30 m/s, how far will it travel horizontally? • A) 30 m • B) 60 m • C) 180 m • D) 360 m Answer: C

  29. Marking Period One Review • A projectile is shot on level ground at a 45o angle. If it has an initial vertical velocity of 30 m/s, how high does it go? • A) 30 m • B) 45 m • C) 60 m • D) 90 m Answer: B

  30. Marking Period One Review 9 N The box on the right has a mass Of 2 kg. What is the magnitude of Its acceleration? 12 N 8 N • A) 17.5 m/s2 • B) 10 m/s2 • C) 2.5 m/s2 • D) 2 m/s2 6 N Answer: C

  31. Marking Period One Review A 10,000 kg truck drives down a straight highway at a steady speed of 30. m/s. What is the weight of the truck? • A) 10,000 kg • B) 100,000 kg • C) 10,000 N • D) 100,000 N Answer: D

  32. Marking Period One Review A 10,000 kg truck drives down a straight highway at a steady speed of 30. m/s. What is the net force on the truck? • A) 1000 N • B) 10,000 N • C) 300,000 N • D) 0 N Answer: D

  33. Marking Period One Review Vector A has a magnitude of 2, vector B has a magnitude of 8. Which is not a possible magnitude for the vector sum A+B? • A) 2 • B) 6 • C) 8 • D) 10 Answer: A

  34. Marking Period One Review A boat can move at 4 m/s in still water. It heads east in a river which flows west at 3 m/s. What is the magnitude of its resultant velocity relative to the riverbank? • A) 5 m/s • B) 1 m/s • C) 7 m/s • D) none of these Answer: B

  35. Marking Period One Review A boat can move at 4 m/s in still water. It heads east in a river which flows north at 3 m/s. What is the magnitude of its resultant velocity relative to the riverbank? • A) 5 m/s • B) 1 m/s • C) 7 m/s • D) none of these Answer: A

  36. Marking Period One Review A car goes from 20 m/s to 80 m/s while traveling 1000 m. What was its average acceleration? • A) 3 m/s2 • B) 50 m/s2 • C) 5 m/s2 • D) 60,000 m/s2 Answer: A

  37. Marking Period One Review A car takes 10 seconds to drive around a circular track with a radius of 100 meters. What was the car’s average velocity for the one lap? • A) 0 m/s • B) 10 m/s • C) 10p m/s • D) 20p m/s Answer: A

  38. Marking Period One Review A car takes 10 seconds to drive around a circular track with a radius of 100 meters. What was the car’s average speed for the one lap? • A) 0 m/s • B) 10 m/s • C) 10p m/s • D) 20p m/s Answer: D

  39. Marking Period One Review Vector A = 30 m/s at 40o E of N. Which of the following is a proper expression for its component to the east? • A) 30 sin 40o • B) 30 cos 40o • C) 60 sin 40o • D) any of these Answer: A

  40. Marking Period One Review A book sits stationary on a table as shown to the right. The force of gravity pulls down on the book. In relation to Newton’s third law of motion, what is the “equal and opposite” force to the force of gravity? • A) The force of the book on the table • B) The force of the table on the book • C) The force of the earth on the book • D) The force of the book on the earth Answer: D

  41. Marking Period One Review A book sits stationary on a table as shown to the right. The table exerts an upward normal force on the book. In relation to Newton’s third law of motion, what is the “equal and opposite” force? • A) The force of the book on the table • B) The force of the table on the book • C) The force of the earth on the book • D) The force of the book on the earth Answer: A

  42. Marking Period One Review A car moving with a speed vo slams on ots brakes and stops in a distance x. Which of the following is a correct expression for the coefficient of kinetic friction between the car’s tires and the road?: • A) vo2 / 2gx • B) 2gx / vo2 • C) 2vo2 / gx • D) gx/2vo2 Answer: A

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