An Introduction to the Solar System

Question 1

Who’s did astronomers determine the masses of the planets?

Answer 1

Kepler’s and Newtons

Question 2

The volume (V) of a sphere (like a planet) is calculated using the equation:

Answer 2

𝑉=43π𝑅3

Question 3

The planets in our solar system can be divided into two groups:

Answer 3

• inner terrestrial planets
• Outer terrestial planets

Question 4

What do Pluto, Eris, Haumea, and Makemake have in common?

Answer 4

They are neither inner terrestial planets, nor outer terrestial planets

Question 5

The giant planets are composed mostly of:

Answer 5

of liquids and gases