Earth Science-scientists/famous Astronomers

22 Questions  I  By Caraj

  
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1.  Who spent 20 years plotting the planets
A.
B.
C.
2.  And AU is NOT equal to...
A.
B.
C.
3.  Who made most of mars obervations, plus were more precise then before
A.
B.
C.
4.  The force of gravity acting upon an object is...
A.
B.
C.
5.  As mars moves away from the sun it...and when it moves toward the sun it....
A.
B.
C.
6.  the plotemic system was..
A.
B.
C.
7.  Keplers 2nd law of planetary motion states: 
A.
B.
C.
8.  What did galileo NOT discover...
A.
B.
C.
9.  Who first used a telescope
A.
B.
C.
10.  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.
11.  What is a sunspot, who discovered it? 
A.
B.
C.
12.  who discovered earth was a planet
A.
B.
C.
13.  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.
14.  True or false: the moon surface is smooth
A.
B.
15.  Who discovered the three laws of planetary motion, plus had a strong mathematical mind
A.
B.
C.
16.  Who calculated that the earth and the sun, but were too small
A.
B.
C.
17.  Who proposed the model of the solar system with the sun at the center
A.
B.
C.
18.  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.
19.  Galileos most important contributions were...
A.
B.
C.
20.  True or false: the orbit of mars and other planets are ellipses, not circles
A.
B.
21.  The greater the mass of the object....
A.
B.
C.
22.  Who created the law of universal gravitation
A.
B.
C.
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