Solar System Quiz 31 (25 MCQs)

Quiz Instructions:

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1. Which of the following data can help someone to infer the size of a planet?

2. The ancient Greek who proposed a geocentric model of the universe is

3. The path that Earth takes around the sun is called its

4. How would the gravitational force between the Earth and the Moon change if the Moon was twice as far away?

5. Which planet has only known life forms

6. I am the eighth planet from the Sun. I am the farthest from the Sun. My twin brother is Uranus.

7. Pieces of rock and dust in space that are smaller than asteroids (they can be made of rock, metal, or both)

8. Which is NOT part of our solar system?

9. The orbital motions of the objects in the solar system are the direct result of which of the following features of the Sun?

10. How many planets orbit the Sun in our solar system?

11. A group of solar systems that are held together by gravity and classified by shape is called a(n)

12. Without gravity, what would be the shape of the solar system?

13. Earth completes one full _____ on its axis every 24 hours.

14. What is the nickname of Mercury, Venus, Earth, and Mars?

15. Primarily why was differentiation possible on Early Earth but not today?

16. The bright streak of light that we call a shooting star is actually

17. Which is the warmest planet?

18. Which of the following characteristics do all of the inner planets share?

19. Which of these is found in the center of our solar system?

20. Which of these lists the outer planets in order of their distance from the Sun (nearest to farthest)?

21. Why do scientists use scale to study the Solar System?

22. He believed the planets orbit the sun in an elliptical orbit.

23. How long is Earth's period of rotation?

24. What is a common characteristic of the inner planets?

25. What is one fact about Venus?