E1t9 Retake Preap 2016

5 Questions | Total Attempts: 74

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E1t9 Retake Preap 2016

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Questions and Answers
  • 1. 
    As an object falls freely in a vacuum, its 
    • A. 

      Velocity increases.

    • B. 

      Acceleration increases.

    • C. 

      Both A and B.

    • D. 

      None of the above.

  • 2. 
    A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be 
    • A. 

      Less than the speed it had when thrown upwards.

    • B. 

      More than the speed it had when thrown upwards.

    • C. 

      The same as the speed it had when thrown upwards.

  • 3. 
    A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always 
    • A. 

      In the direction of motion.

    • B. 

      Opposite its velocity.

    • C. 

      Directed downward.

    • D. 

      Directed upward.

  • 4. 
    Objects that are thrown up into the sky move
    • A. 

      A. faster and faster.

    • B. 

      B. slower and slower

    • C. 

      C. at a constant velocity.

    • D. 

      D. slower then faster.

  • 5. 
    Which would hit the ground first if dropped from the same height in a vacuuma feather or a metal bolt?
    • A. 

      A. the feather

    • B. 

      B. the metal bolt

    • C. 

      C. They would hit the ground at the same time.

    • D. 

      D. They would be suspended in a vacuum.

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