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The momentum & impulse game

The momentum & impulse game. Lots of fun! Win valuable prizes. 1. Which has more momentum, a truck moving at 25 meters per second or an identical truck moving at 30 meters per second? Both have the same momentum. The truck moving at 25 m/s The truck moving at 30 m/s.

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The momentum & impulse game

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  1. The momentum & impulse game Lots of fun! Win valuable prizes

  2. 1. Which has more momentum, a truck moving at 25 meters per second or an identical truck moving at 30 meters per second? • Both have the same momentum. • The truck moving at 25 m/s • The truck moving at 30 m/s

  3. 2. The reason padded dashboards are used in cars is that they • decrease the momentum of a collision. • increase the time of impact in a collision. • look nice and feel good. • decrease the impulse in a collision. • increase the force of impact in a collision.

  4. 3. Superman is at rest in space when he throws an asteroid that has more mass than he does. After he lets go, which moves faster, Superman or the asteroid? • The asteroid • They both move at the same speed. • Superman

  5. 4. A boat with a mass of 1200 kg is moving with a velocity of 10 m/s. What is the boat’s momentum?

  6. 5. The momentum of an object is defined as the object's • force times the time interval. • velocity times the time interval. • force times its acceleration. • mass times its velocity. • mass times it acceleration.

  7. 6. The momentum change of an object is equal to the • impulse acting on it. • object's mass times the force acting on it. • force acting on it times its velocity. • force acting on it. • velocity change of the object.

  8. 7. A car with a mass of 1200 kg is traveling at 15 m/s. If the brakes provide a stopping force of 3000 N, how long does it take to stop?

  9. 8. A collision is considered elastic if • after the collision, the objects have the same shape as before the collision. • the objects that collide don't get warmer. • the objects don’t stick together. • there is no lasting deformation. • all of the above

  10. 9. A cannonball shot from a long-barrel cannon travels faster than one shot from a short-barrel cannon because the cannonball receives a greater • impulse. • force. • neither A nor B • both A and B

  11. 10. What is the impulse does a safety net exert on a falling acrobat if 200 N of force are used to stop the acrobat over 2.5 s?

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