The solar system

1

Which planet is closest to the Sun?

2

What type of object is the Sun?

3

Astronomers have divided the planets into two groups of four. What are the features of the four inner planets?

4

Which of these objects is a dwarf planet?

5

Which of the following is a natural satellite?

6

What are comets made up of?

7

Which of the following is not a part of the solar system?

8

What happens to the gravitational force of attraction between two objects if the distance between them increases?

9

Which statement about polar orbits is correct?

10

Which statement about geostationary satellites is correct?