Slide 2:
The Three Laws of Planetary Motion Second Law The orbit of a planet sweeps out equal areas at equal times. As a result, the planet goes faster closer to the Sun. Sun Figures not drawn to scale
Slide 3:
The Three Laws of Planetary Motion Third Law The period of a planet is proportional to the power of its distance from the Sun. (T ~ Rˆ3/2) So, the nearer the planet is to the Sun, the faster it moves. Sun Animation by: Julia Li Figures not drawn to scale