Moon and Asteroids Quiz

What is the primary definition of a natural satellite?

• A man-made object orbiting a planet

• A naturally occurring celestial body that orbits a planet or larger object

• A small rocky object that only orbits the Sun

• A star that has been captured by a planet's gravity

According to the Collision Theory, what was the approximate size of the object that struck Early Earth?

• The size of the Moon

• The size of Mars

• The size of Jupiter

• The size of a large asteroid

What is the name given to the hypothetical Mars-sized object that collided with Earth 4.5 billion years ago?

• Ceres

• Titan

• Theia

• Vesta

What happened to the material from Earth's outer layers immediately after the giant impact?

• It was absorbed by the Sun

• It formed a disc of debris in orbit around Earth

• It immediately fell back and became the Earth's core

• It escaped the solar system

Why does the Moon have a relatively small iron core compared to its size?

• Because most of the heavy iron from the impact stayed with Earth

• Because most of the heavy iron from the impact stayed with Earth

• Because most of the heavy iron from the impact stayed with Earth

• Because most of the heavy iron from the impact stayed with Earth

Which of the following is strong evidence for the Collision Theory regarding the Moon's composition?

• Moon rocks have different oxygen isotopes than Earth

• Moon rocks are chemically similar to Earth's crust

• The Moon has a thicker atmosphere than Earth

• The Moon is made mostly of ice

What is the significance of the Moon lacking 'volatile' elements like water in its rocks?

• It proves the Moon was always cold

• It suggests the Moon was extremely hot during its formation

• It shows that the Moon was captured from deep space

• It indicates the Moon is much older than the Earth

How does the Moon contribute to Earth's climate stability?

• By reflecting all solar radiation

• By stabilizing Earth's axial tilt

• By providing heat to the Earth's core

• By creating a protective magnetic field

What are 'maria' on the Moon's surface?

• Deep oceans of liquid water

• Large, dark, flat lava plains

• High mountain ranges

• Deep impact craters without lava

Where is the main Asteroid Belt located?

• Between Earth and Mars

• Between Mars and Jupiter

• Beyond the orbit of Neptune

• Between Venus and Mercury