Quiz 8: Gravity

10 Questions | Total Attempts: 130

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Quiz 8: Gravity

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Questions and Answers
  • 1. 
    The kinetic energy of an object will increase the most if you __________________.
    • A. 

      Double the velocity of the object

    • B. 

      Double the mass of the object

    • C. 

      Double the potential energy

    • D. 

      Double the temperature of the object

  • 2. 
    Momentum is the product of ___________.
    • A. 

      Mass times velocity

    • B. 

      Force times distance

    • C. 

      Speed times acceleration

    • D. 

      Time and space

  • 3. 
    When playing billiards, the collisions between the balls are best described as __________________.
    • A. 

      Elastic

    • B. 

      Inelastic

    • C. 

      Expensive

    • D. 

      Exhaustive

  • 4. 
    You have 3 round objects of equal mass and equal radius, but different shapes.  Which of the following shapes will have the largest moment of inertia?
    • A. 

      A hollow ring

    • B. 

      A solid disk

    • C. 

      A solid sphere

    • D. 

      They are all equal

  • 5. 
    is the formula for:
    • A. 

      Moment of inertia

    • B. 

      Rotational kinetic energy

    • C. 

      Total kinetic energy of a moving object

    • D. 

      Potential energy of rotation

  • 6. 
    If the distance between two objects is doubled, what happens to the force of gravitational attraction between them?
    • A. 

      It stays the same

    • B. 

      It is cut in half

    • C. 

      It doubles

    • D. 

      It is 1/4 as strong

  • 7. 
    According to Newton's Law of Universal Gravitation, which of the following do you NOT need to know in order to calculate the force of gravitational attraction between 2 objects?
    • A. 

      Mass of the larger object

    • B. 

      Mass of the smaller object

    • C. 

      Radius of the larger object

    • D. 

      Distance between the two objects

  • 8. 
    When calculating the force of gravity between two objects, you need to measure the distance between:
    • A. 

      The centers of mass of the two objects

    • B. 

      The points where the objects surfaces are closest to each other

    • C. 

      The points where the objects surfaces are farthest away from each other

    • D. 

      Two arbitrary points within the objects' mass

  • 9. 
    According to Keler, the path of a planet's orbit is in the shape of _____________.
    • A. 

      A circle, with the sun at the center

    • B. 

      An ellipse, with the sun at one of the foci

    • C. 

      A circle, with the earth at the center

    • D. 

      An ellipse, with the earth at one of the foci

  • 10. 
    According to Kepler, a planet will travel fastest in its orbit when _____________.
    • A. 

      It is closest to the sun

    • B. 

      It is farthest from the sun

    • C. 

      It is coldest

    • D. 

      It is aligned with the other planets