Physics: Mercury

Test Quiz

Questions on this quiz are based on information from
Physics: Mercury.

1. Mercury is the ______ planet from the Sun.
a. 1st
b. 2nd
c. 4th
d. 6th
e. 8th

2. What type of planet is Mercury?
a. Dwarf planet
b. Gas giant planet
c. Terrestrial planet
d. Ice giant planet
e. All of the above

3. Which of the following best describes the surface of Mercury?
a. Cloudy and hot with lots of volcanoes
b. Cold, rocky, and covered in red dust
c. A thick layer of hydrogen gas
d. Barren and rocky with lots of craters
e. Mostly water surface with some areas of dry land

4. Around how big is Mercury's mass when compared to the mass of the Earth?
a. 5.5% of the Earth's mass
b. 11% of the Earth's mass
c. 82% of the Earth's mass
d. 95 times the Earth's mass
e. 318 times the Earth's mass

5. Around how long is a day on Mercury?
a. 9.8 hours
b. 10.7 hours
c. 24.6 hours
d. 58.7 Earth days
e. 243 Earth days

6. Mercury is the ______ planet in the Solar System.
a. Smallest
b. Second smallest
c. Third smallest
d. Second largest
e. Largest

7. Why does Mercury have such extremes in temperature?
a. Because it's day is so long
b. Because it has little atmosphere
c. Because it is so close to the Sun
d. All of the above
e. None of the Above

8. Mercury was named after what Roman god or goddess?
a. God of war
b. Roman messenger to the gods
c. Goddess of love
d. God of agriculture
e. God of the sky

9. True or False: Mercury is more similar to the Earth's Moon in size and surface than to planet Earth.

10. Why is it difficult to send space craft to Mercury?
a. Because it is so far away
b. Because it is moving so fast
c. Because it is so close to the Sun
d. All of the above
e. None of the Above

About this quiz: All the questions on this quiz are based on information that can be found on the Physics: Mercury page at

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