Rebekkah Gresh
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Mercury

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Rebekkah Gresh
Created by Rebekkah Gresh over 8 years ago
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Mercury

Mercury

Question 1 of 12

1

In comparison to the planets in the solar system Mercury is:

Select one of the following:

  • the smallest

  • the largest of the terrestrial planets

  • the largest

  • the smallest of the gas giants

Explanation

Question 2 of 12

1

Mercury is roughly the size of the Moon, though, slightly larger.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 12

1

Mercury has not yet been explored by any space probes.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 12

1

Describe Mercury's interior.

Select one of the following:

  • Mercury has a large, semi-molten, iron-nickel core, a silicate mantle, and a thin, rocky crust.

  • Mercury has a small, solid iron-nickel core, a larger liquid outer core, a silicate mantle, and a rocky crust.

  • Mercury has a large, solid, iron-nickel core, a rocky mantle, and a rocky crust.

  • Mercury has a small, semi-molten, iron-nickel core, a large silicate mantle, and a thin rocky crust.

Explanation

Question 5 of 12

1

What is unique about Mercury's rotation?

Select one of the following:

  • Mercury rotates backwards on its axis (clockwise) whereas all the other planets rotate counterclockwise.

  • Mercury "wobbles" as it rotates on its axis.

  • Mercury's axis is at a 90 degree angle, so it rotates on its side.

  • Mercury's rotation is experiencing tidal lock, which causing the same side of Mercury to face the Sun at all times.

Explanation

Question 6 of 12

1

1 year (the amount of time it takes Mercury to orbit the sun) on Mercury is shorter than 1 day (the time it takes to rotate once on Mercury's axis) on Mercury.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 12

1

Mercury has no magnetic field.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 12

1

What is unique about Mercury's orbit?

Select one of the following:

  • It is the most elliptical orbit of any planet in our solar system.

  • It is the most circular orbit of any planet in our solar system.

  • It is perpendicular in comparison to other planets' orbits.

  • Mercury orbits backwards around the Sun, so it moves in a clockwise path.

Explanation

Question 9 of 12

1

Why does Mercury experience extreme temperature changes?

Select one of the following:

  • Because it has no atmosphere to retain heat.

  • Because of Mercury's closeness to the Sun.

  • Because of Mercury's slow rotation causing long days and nights.

  • All of the above

Explanation

Question 10 of 12

1

Why does Mercury lack an atmosphere?

Select one of the following:

  • Mercury lacks an atmosphere due to its small gravitational force.

  • Mercury lacks an atmosphere because the Sun burns off all gas before it can create an atmosphere.

  • Mercury lacks an atmosphere because it does not have a magnetic field to protect its atmosphere from the Sun.

  • Mercury lacks an atmosphere because it never developed one.

Explanation

Question 11 of 12

1

What evidence suggest that Mercury may have a partially molten, or molten interior?

Select one of the following:

  • The presence of a magnetic field.

  • The odd "wobbling" of Mercury's rotation on its axis.

  • The high surface temperature indicates that there must be a partially-molten interior.

  • A and B are both correct.

  • A, B, and C are all correct.

  • A and C are correct.

Explanation

Question 12 of 12

1

While Mercury currently has a slow rotation, it probably rotated much faster in the past.

Select one of the following:

  • True
  • False

Explanation

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