Crash Course Astronomy Solar System

Which of the following statements is true about the solar system?

• The sun makes up less than 1% of the mass of the solar system.

• The sun makes up more than 98% of the mass of the solar system.

• All the planets in the solar system are roughly the same size.

• The solar system is perfectly round.

Why was the idea that the Earth revolves around the Sun controversial for many years?

• Because it went against the teachings of the Church at the time.

• Because there was no evidence to support it.

• Because it was difficult to observe with the technology available

• All of these

What is the name of the theory that proposes the sun is at the center of the solar system?

• Geocentric theory

• Heliocentric theory

• Theory of Relativity

• Big Bang Theory

What is the main reason why Mercury and Venus are much smaller than Jupiter and Saturn?

• Because they are closer to the Sun and the Sun’s heat prevented them from growing larger

• Because they formed later in the formation of the solar system and there was less material left

• Because they are farther from the Sun and the Sun’s gravity is weaker.

• Because they don’t have thick atmospheres like Jupiter and Saturn.

What is the name of the belt of asteroids located between Mars and Jupiter?

• The Kuiper Belt

• The Oort Cloud

• The Asteroid Belt

• The Roche Limit