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Earth Science-scientists/famous Astronomers

22 Questions  I  By Caraj
EARTH SCIENCE-scientists/famous astronomers

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