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Understanding Forces and Motion

This set of questions explores concepts related to Newton's Laws, forces, acceleration, and tension. Test your knowledge and enhance your understanding of these fundamental physics principles.

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Understanding Forces and Motion

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  1. Newton’s Laws

  2. 18 of 65 0 A hockey puck slides on ice at constant velocity. What is the net force acting on the puck? • more than its weight • less than its weight • Less than its weight but more than zero • Depends on the speed of the puck • zero

  3. 49 20 of 65 You put your book on the bus seat next to you. When the bus stops suddenly, the book slides forward off the seat. Why? • A net force acted on it • No net force acted on it • It remained at rest • It didn’t move; it only seemed to • Gravity momentarily stopped acting on it

  4. 17 of 65 0 A force F acts on mass M for a time interval T, giving it a final speed v. If the same force acts for the same time on a different mass 2M, what would be the final speed of the bigger mass? • 4 v • 2 v • v • ½ v • ¼ v

  5. 46 15 of 65 What can you say about the force of gravity Fg acting on a stone and a feather? • Fg is greater on the feather • Fg is greater on the stone • Fg is zero on both due to the vacuum • Fg is equal on both always • Fg is zero on both always

  6. 18 of 65 0 What can you say about the acceleration of the falling stone and feather? • it is greater for the feather • it is greater for the stone • it is zero for both due to the vacuum • it is equal for both always • it is zero for both always

  7. Case 1 Case 2 13 of 65 0 Below you see two cases: a physics student pulling or pushing a sled with a force F which is applied at an angle q. In which case is the normal force greater? • Case 1 • Case 2 • Same for both • Depends on |F| • Depends on surface conditions

  8. 60 0 of 5 A small car collides with a large truck. Which experiences the greater impact force? • The car • The truck • Both the same • Depends on the speed of each • Depends on the mass of each

  9. 60 0 of 5 You tie a rope to a tree and you pull on the rope with a force of 100 N. What is the tension in the rope? • 0 N • 50 N • 100 N • 150 N • 200 N

  10. 60 0 of 5 Two tug-of-war opponents each pull with a force of 100 N on opposite ends of a rope. What is the tension in the rope? • 0 N • 50 N • 100 N • 150 N • 200 N

  11. 60 0 of 5 You and a friend can each pull with a force of 20 N. If you want to rip a rope in half, what is the best way? • You and your friend pull from opposite ends of the rope • Tie one end around a tree and both pull from the same end • It doesn’t matter; both ways are the same • Get a large dog to bite it!

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