Collision Theory

What is the Collision Theory?

• The moon was a wandering body in the solar system and was captured by Earth's gravity as it passed nearby.

• Moon was created along with Earth at its formation.

• The Moon was formed during a collision between Earth and Theia with debris collecting in an orbit around Earth.

• Earth had been spinning so fast that some material broke away and began to orbit the planet.

Which Planet collided The Earth according to the Collision Theory?

• Mars

• Theia

• Mercury

• Pluto

Which of the 2 support the Collision Theory?

• The Moon has a small iron core similar to the Earth

• Venus has no Moon

Which of the 2 contradict the Collision Theory?

• The moon is less dense than the Earth

• The collision would have caused the Surface of the Earth to melt, however the Earth's surface never appears to be molten.

Which of the 2 support the Collision Theory?

• Collision theory does not explain energy activation barriers.

• The Moon's orbit has a similar orientation to Earth's rotation.

Which of the 2 Contradict the Collision Theory?

• The composition of rocks on the moon would be expected to be more similar to rocks on Theia than rocks on earth

• There are evidences outside the solar system of similar collisions causing rings of rock and duct to be created.

Which is the only place beyond Earth where humans have set foot on?

• Jupiter's Moon

• Earth's Moon

• Venus

• Mercury

We can see both the sides of the Moon. True or False?

• False

• True

The Moon is Drifting away from the Earth. True or False?

• True

• False

How many days does it athe moon to complete one orbit of the Earth?

• 30.5

• 31

• 27.3

• 23.7