Planetary Motion & Gravitational Attraction
13 hours ago
jose_vallin_93942
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18 QuestionsShow answers
  • Question 1
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    Q.

    The true shapes of planetary orbits are known as ________

    answer choices

    ellipses

    circles

    hyperbolas

    parabolas

  • Question 2
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    Q.

    When Earth is the farthest from the Sun, it is said to be in the perihelion position.

    answer choices

    False

    True

  • Question 3
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    Q.

    When Earth is the nearest from the Sun, it is said to be in the aphelion position.

    answer choices

    False

    True

  • Question 4
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    Q.

    At which position might the moon block part of the Sun, making a solar eclipse visible from Earth?

    answer choices

    7

    2

    9

    3

  • Question 5
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    Q.

    The planets stay in orbit around the Sun because of a balance between ________ and ________.

    answer choices

    force

    speed

    energy

    gravity

  • Question 6
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    Q.

    The diagram below illustrates the relationship of the Moon and the Earth during a __________ eclipse.

    answer choices

    solar

    lunar

  • Question 7
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    Q.

    The animation below illustrates Kepler's __________ law.

    answer choices

    first

    second

    third

  • Question 8
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    Q.

    The animation below illustrates Kepler's __________ law.

    answer choices

    first

    second

    third

  • Question 9
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    Q.

    What revolves around the Earth?

    answer choices

    The moon

    The Sun

    Mars

    Venus

  • Question 10
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    Q.

    Calculate the eccentricity of this planet.

    answer choices

    5.4

    0.67

    0.25

    0.19

  • Question 11
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    Q.

    If the distance between the objects increases by 2, and mm is doubled, what happens to the gravitational force?

    answer choices

    The gravitational force stays the same.

    The gravitational force increases by 2.

    The gravitational force decreases by 1/4.

    The gravitational force decreases by 1/2.

  • Question 12
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    Q.

    When is the Earth moving the fastest?

    answer choices

    July

    November

    January

    February

  • Question 13
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    Q.

    When is the Earth in perihelion?

    answer choices

    July

    November

    January

    February

  • Question 14
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    Q.

    When is the Earth in aphelion?

    answer choices

    July

    November

    January

    February

  • Question 15
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    Q.

    Which planet orbits the fastest around Star A?

    answer choices

    Planet X

    Planet Y

    Planet Z

  • Question 16
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    Q.

    If the Earth were twice as massive as it is now, then the gravitational force between it and the Sun would be

    answer choices

    the same

    twice as great

    four times as great

    half as great

  • Question 17
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    Q.

    The gravitational force between two objects depends on

    answer choices

    the mass of the objects and the distance between their centers

    the mass of the objects and half the distance between them

    the weight of the objects and the distance between their centers

    the circumference of the objects and the distance between them

  • Question 18
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    Q.

    What creates gravity?

    answer choices

    The motion of the objects.

    The mass of the objects.

    The energy of the objects.

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