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CONSERVATION LINEAR MOMENTUM MCQs

Total Questions : 30 | Page 2 of 3 pages
Question 11. A boy kicks a football with a force of 20 N, the time the force acts for is 0
  1.    6.67N*s
  2.    6.0 N*s
  3.    66.7 N*s 
  4.    None of these
 Discuss Question
Answer: Option B. -> 6.0 N*s
Question 12. 2 balls collide and bounce off of each other
  1.    Inelastic Collision
  2.    Elastic Collision
  3.    Perfectly Inelastic Collision
  4.    No collision occurred
 Discuss Question
Answer: Option B. -> Elastic Collision
Question 13. When two objects collide, their momentum after the collision is explained by ______
  1.    Newton’s first law of motion
  2.    Newton’s second law of motion
  3.    Newton’s third law of motion
  4.    the conservation of momentum
 Discuss Question
Answer: Option D. -> the conservation of momentum
Question 14. The momentum of an object is the sum of its mass and its velocity
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 15. A 120 kg lineman moving at -2 m/s tackles an 80 kg fullback moving at +8 m/s
  1.    2 m/s
  2.    8.7 m/s
  3.    4.7 m/s
  4.    6 m/s
 Discuss Question
Answer: Option A. -> 2 m/s
Question 16. A 3,000 kg truck moving at +10 m/s hits a 1,000 kg parked car which moves off at +15 m/s
  1.    10 m/s
  2.    0 m/s
  3.    5 m/s
  4.    2 m/s
 Discuss Question
Answer: Option C. -> 5 m/s
Question 17. The total momentum before a collision is _________ the total momentum after a collision
  1.    equal to 
  2.    less than 
  3.    more than
  4.    It depends on the type of collision
 Discuss Question
Answer: Option A. -> equal to 
Question 18. A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s
  1.    -2.5..
  2.    -10
  3.    -18
  4.    -45
 Discuss Question
Answer: Option C. -> -18
Question 19. If an object with a mass of 12 kilograms is moving at 10 meters per second, what is its momentum?
  1.    120 kg*m/s
  2.    120 kg*m*s
  3.    1.2 kg*m/s
  4.    1.2 kg*m*s
 Discuss Question
Answer: Option A. -> 120 kg*m/s
Question 20. Determine the momentum of 1,000-kg car moving northward at 20 m/s
  1.    20,000 N
  2.    20,000 Joules
  3.    20,000 Kg * m/s
  4.    20,000 kg * m/s north
 Discuss Question
Answer: Option D. -> 20,000 kg * m/s north

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