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Earth Science-scientists/famous Astronomers

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

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