Newton's and Kepler's Laws

Kepler's First Law

Every planet orbits around the sun in an ellipse.

Kepler's Second Law

The closer you are to the sun, the quicker you travel.

Kepler's Third Law

the squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits

Newton's First Law

An object in motion stays in motion unless acted upon by an outside force.

Newton's Second Law

Acceleration is produced when a force acts on a mass.

Newton's Third Law

For every action, there is an equal and opposite reaction.

F=ma

Force equation

Acceleration

the rate at which velocity changes.