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Universal Gravitation Chapter 9 Test P3

Quiz by Ian Meek

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10 questions
Show answers
  • Q1

    For some massive stars, gravitational collapse doesn’t stop until the density of the star becomes so enormous that even light cannot escape. Such a star becomes a black hole.

    true
    false
    True or False
    300s
  • Q2

    The earth and the sun pull on each other with the same amount of gravitational force.

    true
    false
    True or False
    300s
  • Q3

    Ocean tides are caused by differences in the gravitational pulls by the moon on opposite sides of the earth.

    true
    false
    True or False
    300s
  • Q4

    The gravitational force of Earth on an object increases as the object moves farther from Earth.

    false
    true
    True or False
    300s
  • Q5

    If Earth were its present volume but with more mass, we would weigh more.

    true
    false
    True or False
    300s
  • Q6

    The gravitational force between two massive spheres

    is always an attraction.

    depends on how massive they are.

    depends inversely on the square of the distances between them.

    all of the answers given

    300s
  • Q7
    Suppose the gravitational force between two massive balls is 20N. If the distance between the balls is cut in half, what is the force between the masses?

    5 N

    20 N

    40 N

    80 N

    300s
  • Q8

    The gravitational field strength at the center of Earth is

    zero.

    great.

    smaller than on the surface but still larger than zero.

    the same as on the surface.

    300s
  • Q9

    If you were to weigh yourself in an elevator that is accelerating upward, compared to your ordinary weight you would weigh

    more.

    zero.

    the same.

    less, but more than zero.

    300s
  • Q10

    By what factor would your weight be multiplied if Earth’s diameter shrank to half and Earth’s mass doubled?

    Users enter free text
    Type an Answer
    300s

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