Chapter 5: Newton's Third Law Of Motion, Action And Reaction

10 Questions | Total Attempts: 533

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Motion Quizzes & Trivia

Questions and Answers
  • 1. 
    For an action force, there must be a reaction force that
    • A. 

      Always acts in the same direction

    • B. 

      Is slightly smaller in magnitude than the action force

    • C. 

      Is slightly larger in amplitude than the action force

    • D. 

      Is exactly equal in magnitude

  • 2. 
    An archer shoots an arrow. Consider the action force to be the bowstring against the arrow. The reaction to this force is the
    • A. 

      Combined weight of the arrow and bowstring

    • B. 

      Air resistance against the bow

    • C. 

      Friction of the ground against the archer's feet

    • D. 

      Grip of the archer's hand on the bow

    • E. 

      Arrow's push against the bowstring

  • 3. 
    A player catches a ball. Consider the action force to be the impact of the ball against the player's glove. The reaction to this force is the
    • A. 

      Player's grip on the glove

    • B. 

      Force the glove exerts on the ball

    • C. 

      Friction of the ground against the player's shoes

    • D. 

      Muscular effort in the player's arms

    • E. 

      None of these

  • 4. 
    A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction to this force is the
    • A. 

      Air resistance on the ball

    • B. 

      Weight of the ball

    • C. 

      Force that the ball exerts on the bat

    • D. 

      Grip of the player's hand against the ball

    • E. 

      Weight of the bat

  • 5. 
    A baseball player bats a ball with a force of 1000 N. The reaction force that the ball exerts against the bat is
    • A. 

      Less than 1000 N

    • B. 

      More than 1000 N

    • C. 

      1000 N

    • D. 

      Impossible to determine

  • 6. 
    As a ball falls, the action force is the pull of Earth on the ball. The reaction force is the
    • A. 

      Air resistance acting against the ball

    • B. 

      Acceleration of the ball

    • C. 

      Pull of the ball's mass on the Earth

    • D. 

      None of these

  • 7. 
    A person is attracted toward the center of Earth by a 500-N gravitational force. The Earth is attracted toward the person with a force of
    • A. 

      Zero

    • B. 

      250 N

    • C. 

      500 N

    • D. 

      1000 N

  • 8. 
    A karate chop delivers a blow of 3000 N to a board that breaks. The force that acts on the hand during this event is
    • A. 

      Zero

    • B. 

      1500 N

    • C. 

      3000 N

    • D. 

      6000 N

  • 9. 
    Arnold Strongman and Suzie Small each pull very hard on opposite ends of a massless rope in a tug-of-war. The greater force on the rope is exerted by
    • A. 

      Arnold, of course

    • B. 

      Suzie, surprisingly

    • C. 

      Both the same, interestingly enough

  • 10. 
    Earth pulls on the moon. Similarly the moon pulls on Earth, evidence that
    • A. 

      These two pulls comprise an action-reaction pair

    • B. 

      Earth is larger so its pull is larger

    • C. 

      The moon is smaller so its pull is smaller

    • D. 

      Larger objects pull harder

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