03-08-2017 quiz

Question 1

Differentiate Aphelion and Perihelion

Answer 1

Aphelion-the point in a planet’s orbit that is farthest from the sun (slowest motion)
Perihelion- the point in Earth’s orbit that is nearest to the sun.(fastest motion)

Question 2

Kepler’s Law of Planetary Motion

Answer 2

Law of Ellipses
Law of Equal Areas
Law of Harmonies

Question 3

Contains records of celestial observations he made using his crude astronomical instruments

Answer 3

Rudolphine Tables

Question 4

The squares of the revolutions of the planets are directly proportional to the cubes of their average distances from the sun .

Answer 4

Law of Harmonies

Question 5

Brahe’s Contribution in Observational Astronomy

Answer 5

Rudolphine Tables

Question 6

As a lanet moves at any point along its elliptical orbit, it travels equal areas of space in equal periods of time

Answer 6

Law of Equal Areas

Question 7

Each planet move in a elliptical path, with the sun at one focus

Answer 7

Law of Ellipses

Question 8

Formula in Law of Harmonies

Answer 8

(T_A^2)/(T_B^2 )=(r_A^3)/(r_B^3 )
where T_A is the revolutionary period of the planet A, T_B is the revolutionary period of planet B,
r_A is the avaerage distance of planet A from sun and r_B is the average distance of planet B from sun.

Question 9

Law of Ellises 2kinds

Answer 9

Aphelion and Perihelion