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Questions and Answers
What is the Moon's mass compared to Earth's mass based on the text?
What is the Moon's mass compared to Earth's mass based on the text?
- 1/120
- 1/80 (correct)
- 1/60
- 1/100
What does the Moon's average density of 3300 kg/m3 compared to Earth's 5500 kg/m3 suggest?
What does the Moon's average density of 3300 kg/m3 compared to Earth's 5500 kg/m3 suggest?
- The Moon contains fewer heavy elements than Earth. (correct)
- The Moon is denser than Earth.
- The Moon contains more heavy elements than Earth.
- The Moon has a similar composition to Earth.
Which statement is true about the force of gravity on the Moon and Mercury compared to Earth?
Which statement is true about the force of gravity on the Moon and Mercury compared to Earth?
- Gravity on the lunar surface is about 1/6 that on Earth. (correct)
- Gravity on Mercury is about 2x stronger than Earth.
- Gravity on the Moon is stronger than on Earth.
- Mercury's gravity is the same as Earth's.
Why do astronomers believe that the Moon and Mercury do not have appreciable atmospheres?
Why do astronomers believe that the Moon and Mercury do not have appreciable atmospheres?
What would be the weight of an astronaut weighing 180 lbs on Earth when on Mercury?
What would be the weight of an astronaut weighing 180 lbs on Earth when on Mercury?
What is the Moon's escape velocity compared to Earth's escape velocity based on the text?
What is the Moon's escape velocity compared to Earth's escape velocity based on the text?
What is the size range of craters found on the Moon's surface?
What is the size range of craters found on the Moon's surface?
Where are craters more prevalent on the Moon's surface?
Where are craters more prevalent on the Moon's surface?
What are the names of the Moon's mountain ranges primarily inspired by?
What are the names of the Moon's mountain ranges primarily inspired by?
What is notable about the far side of the Moon?
What is notable about the far side of the Moon?
Why is the lack of major maria on the far side of the Moon significant?
Why is the lack of major maria on the far side of the Moon significant?
What is true about the names of the Moon's significant surface features?
What is true about the names of the Moon's significant surface features?
What is the primary reason for the difference in cratering between the lunar highlands and maria?
What is the primary reason for the difference in cratering between the lunar highlands and maria?
What is the primary difference in composition between the lunar highlands and maria?
What is the primary difference in composition between the lunar highlands and maria?
What is the approximate density of the rocks found in the lunar highlands?
What is the approximate density of the rocks found in the lunar highlands?
What is believed to have occurred on the Moon around 3.9 billion years ago?
What is believed to have occurred on the Moon around 3.9 billion years ago?
What process is believed to have formed the type of rock found in the maria?
What process is believed to have formed the type of rock found in the maria?
What do many of the rock samples brought back by the Apollo astronauts show evidence of?
What do many of the rock samples brought back by the Apollo astronauts show evidence of?
What is the name of the system of valleys at the edge of the Mare Imbrium?
What is the name of the system of valleys at the edge of the Mare Imbrium?
What is the average density of the Moon?
What is the average density of the Moon?
What is the probable reason for the absence of a lunar magnetic field?
What is the probable reason for the absence of a lunar magnetic field?
What is the size of the large crater closest to the center, Autolycus?
What is the size of the large crater closest to the center, Autolycus?
How high does Mount Hadley rise?
How high does Mount Hadley rise?
What is the estimated radius of the Moon's core?
What is the estimated radius of the Moon's core?
What is the primary reason for the crust becoming thinner on the near side and thicker on the far side of the Moon?
What is the primary reason for the crust becoming thinner on the near side and thicker on the far side of the Moon?
What is the age of the oldest rocks discovered in the lunar highlands?
What is the age of the oldest rocks discovered in the lunar highlands?
What happened to the surface layers of the Moon during the first half billion years of its existence?
What happened to the surface layers of the Moon during the first half billion years of its existence?
What is the result of the denser lunar mantle sinking below the lighter crust?
What is the result of the denser lunar mantle sinking below the lighter crust?
What formed on the surface of the Moon about 3 billion years ago, filling the low-lying impact basins?
What formed on the surface of the Moon about 3 billion years ago, filling the low-lying impact basins?
What is a characteristic of the Moon at the time of its formation?
What is a characteristic of the Moon at the time of its formation?
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