what is the name of Kepler's first law of planetary motion
What is the Law of Ellipses
100
what are the terms for the points at which a planet is closest and farthest from the sun in its orbit?
What is perihelion, aphelion
100
how many years was it between the discovery of Kepler's second and third laws?
What is 10 years later
100
in newton's law of gravitation, what does the variable r represent?
What is the distance between masses
100
Johannes Kepler was of what nationality?
What is german
200
what was Tycho's observations of the planets?
What is the planets had circular orbits
200
what branch of math did Kepler use to discover his second law?
What is geometry
200
what is the name of kepler's third law of planetary motion
What is the Harmonic Law
200
in the formula for Newton's law of gravitation what does the variable f represent
What is the force between masses
200
how did newton get the idea for his laws of motion?
What is an apple falling on his head
300
what does an ellipse look like
What is a flattened circle, imperfect circle, closed curved shape defined by two foci.
300
what is the name of Kepler's second law of planetary motion?
What is the Equal-Areas Law
300
recite Keplers 3rd law
What is the squares of the orbital periods of the planets are proportional to the cubes of the orbital semi-major axis
300
what does Newton's law of gravitation state?
What is every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
300
what system did Kepler firmly believe in?
What is the Copernican System
400
what is the shape of an ellipse measured by?
What is eccentricity
400
recite Kepler's second law of planetary motion
What is the line that connects the planet to the sun sweeps out equal areas in equal times.
400
what is the formula for kepler's 3rd law?
What is P2=a2
400
what is the number is Newtons law of gravitation in his laws of motion?
What is the second law
400
what nationality was Newton?
What is English
500
recite Kepler's 1st law of planetary motion
What is the orbits of the planets are ellipses with the sun at one of the foci
500
at what point (perihelion or aphelion) does a planet seem to move faster?
What is perihelion
500
what do the variables (P) and (a) represent?
what is P=orbital period, a=length of the semimajor axis
500
name the equation for Newton's law of gravitation?
What is F= Gm1m2 over r2
500
when was his monograph Philosophiæ Naturalis Principia Mathematica published?