Energy Mini Quiz

4 Questions  I  By 11reefeg
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Energy Quizzes & Trivia
Energy mini quiz.

  
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Questions and Answers

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  • 1. 
    Two pool balls, each moving at 2 m/s, roll toward each other and collide. Suppose after bouncing apart, each moves at 4 m/s. This collision violates conservation of
    • A. 

      Momentum

    • B. 

      Energy

    • C. 

      Both a & b

    • D. 

      Neither of these

    • E. 

      Both c & d


  • 2. 
    In a pendulum, if the KE decreases
    • A. 

      The PE is increased

    • B. 

      The PE is constant

    • C. 

      Friction will stop the decrease of KE

    • D. 

      PE always equals the force


  • 3. 
    When an object is lifted 10m, it gains a certain amount of PE. If the same object is lifted 20m, its potential energy gain is
    • A. 

      Less

    • B. 

      The same

    • C. 

      Twice as much

    • D. 

      Four times as much

    • E. 

      More than 4 times a smuch


  • 4. 
    If object A travels at 5 m/s, and object B has the same mass but travels twice as fast. How much more KE will the second object have?
    • A. 

      2 times as much

    • B. 

      4 times as much

    • C. 

      6 times as much

    • D. 

      3 times as much


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