Gravity

Question 1

Newton’s Law of Gravitation

Answer 1

“Gravity is an attractice force applied by every particle to every other particle in the universe”

Gravitational Constant: G = 6.67 x 10^-11 N m^2/kg^2

Question 2

Orbits

Answer 2

The curved path of one celestial object or spacecraft around another celestial object.

Circular & Elliptical

Question 3

Kepler’s 1st Law (Law of Orbits)

Answer 3

“The orbital shape of all planets is elliptical with the sun at one focus of the ellipse”

Question 4

Kepler’s 2nd Law

Answer 4

“ A line drawn between a planet and the sun sweeps out the same area given the same time.”

Question 5

Kepler’s 3rd Law

Answer 5

“The ratio of the semi-major axis of a planet to its orbital perios is the same for every other planets orbiting the same start (sun)”

T^2 = R^2

Question 6

Perihelion vs. Aphelion

Answer 6

Perihelion - point nearest to the sun
Aphelion - point farthest to the sun