Multiple Choice
A major contribution of Johannes Kepler to the development of modern astronomy was
A) development of the first mathematical heliocentric model of the solar system.
B) the first model in which planetary orbits are ellipses.
C) use of parallax to prove that Earth moves around the Sun.
D) observation of the satellites (moons) of Jupiter.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: A planet's sidereal year is different from
Q3: The Copernican system for planetary motions is<br>A)
Q4: Venus experiences all of these EXCEPT<br>A) inferior
Q5: If one uses a force of 100
Q6: Kepler's first law states that a planet
Q8: The Crab Nebula is the result of
Q9: Saturn experiences all of these EXCEPT<br>A) inferior
Q10: If a tenth planet (tentatively predicted to
Q11: When Mars is at perihelion it must
Q12: An asteroidlike object (or a cometary nucleus)