1. | The greater the mass of the object.... |
A. |
B. |
C. |
2. | Who calculated that the earth and the sun, but were too small |
A. |
B. |
C. |
3. | The force of gravity acting upon an object is... |
A. |
B. |
C. |
4. | Galileos most important contributions were... |
A. |
B. |
C. |
5. | And AU is NOT equal to... |
A. |
B. |
C. |
6. | Who spent 20 years plotting the planets |
A. |
B. |
C. |
7. | Who first used a telescope |
A. |
B. |
C. |
8. | Keplers 2nd law of planetary motion states: |
A. |
B. |
C. |
9. | True or false: the moon surface is smooth |
A. |
B. |
10. | True or false: the orbit of mars and other planets are ellipses, not circles |
A. |
B. |
11. | the plotemic system was.. |
A. |
B. |
C. |
12. | True or false: a moving object will continue to move at a constant speed and in a straight line with gravity is called inertia |
A. |
B. |
13. | Who created the law of universal gravitation |
A. |
B. |
C. |
14. | Keplers third law states that the square length of time it takes a planet to orbit the sun is proportional to the cube of its mean distance from the... |
A. |
B. |
C. |
15. | What did galileo NOT discover... |
A. |
B. |
C. |
16. | Who discovered the three laws of planetary motion, plus had a strong mathematical mind |
A. |
B. |
C. |
17. | who discovered earth was a planet |
A. |
B. |
C. |
18. | According to........, every body in the universe attracts every other body with a force that is directly proportional to their masses and inversely proportional to the square of the distance between their mass ( law of gravitation) |
A. |
B. |
C. |
19. | What is a sunspot, who discovered it? |
A. |
B. |
C. |
20. | Who made most of mars obervations, plus were more precise then before |
A. |
B. |
C. |
21. | As mars moves away from the sun it...and when it moves toward the sun it.... |
A. |
B. |
C. |
22. | Who proposed the model of the solar system with the sun at the center |
A. |
B. |
C. |