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Physics Review Game: Chapter 3

Physics Review Game: Chapter 3. Mr. Vannucci’s Class. 1 . Which person has the greatest inertia ? a ) A 110-kg wrestler resting on a mat. b ) A 90-kg man walking at 2 m/s. c ) A 70-kg man running at 5 m/s . d) A 50-kg girl sprinting at 8 m/s.

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Physics Review Game: Chapter 3

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  1. Physics Review Game:Chapter 3 Mr. Vannucci’s Class

  2. 1. Which person has the greatest inertia?a) A 110-kg wrestler resting on a mat. b) A 90-kg man walking at 2 m/s. c) A 70-kg man running at 5 m/s. d) A 50-kg girl sprinting at 8 m/s.

  3. 2. Which person has the greatest kinetic energy?a) A 110-kg wrestler resting on a mat. b) A 90-kg man walking at 2 m/s. c) A 70-kg man running at 5 m/s. d) A 50-kg girl sprinting at 8 m/s.

  4. 3. Which person has the greatest momentum?a) A 110-kg wrestler resting on a mat. b) A 90-kg man walking at 2 m/s. c) A 70-kg man running at 5 m/s. d) A 50-kg girl sprinting at 8 m/s.

  5. 4. In a demonstration, a student throws a raw egg at a bed sheet held by two other students, and the egg does not break. The best reason to explain why the egg does not break is thata) The sheet is made of soft cotton. b) The student threw the egg at an angle so it struck the sheet at a glancing blow. c) The sheet stops the egg over a large distance, leading to a small force. d) The egg landed on its end, which is harder to break.

  6. 5. A 1.0-kg cart traveling at a constant 2.0 m/s across a level lab table 0.80 m above the floor is stopped in a distance of 0.20 m. The amount of work required to stop the cart isa) 1 J. b) 2 J. c) 2.5 J. d) 4 J.

  7. 6. If the car from problem 5 were to stop in half the distance, the work required to do so would bea) the sameb) twice as muchc) half as muchd) four times as much

  8. 7. A constant net force of 20 N acts on an object of mass 5 kg. As the mass of the object is increased, the acceleration of the object willa) decrease. b) increase. c) remain the same. d) increase until the mass equals the force.

  9. 8. In Section 4 we did rear-end collisions where a clay dummy would tumble out of the car upon collision. The physical principle that best explains this is:a) Newton’s first law. b) Newton’s second law.c) the law of action-reaction. d) whiplash.

  10. 9. Describe why a wire seat belt would not be effective even though the force exerted on you would be identical to that of a cloth seat belt

  11. 10. What velocity would a 1250 kg car need in order to have the same momentum as a 3400 kg truck at 7.5 m/s?

  12. 11. A BLUEcar of an unknown mass starts at rest. It is hit by a REDcart with a mass of 250 g and a velocity of 3 m/s. The REDcart comes to rest, and the BLUEcart recoils at 1.25 m/s.What is the mass of the BLUEcart?

  13. 12. Two train cars of identical mass 1200 kg are moving towards each other. Car 1 has a velocity of +2 m/s and Car 2 a velocity of -3 m/s.After colliding, they stick together. What is their stuck together velocity?

  14. 13. A small Saturn with a mass of 900 kg and starts at a velocity of +12 m/s. It collides with a 1800 kg Cadillac that starts at rest.After the collision, the Saturn recoils at a speed of -0.5 m/s. What is the speed of the Cadillac after the collision?

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