Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

29.1 Models of the Solar System

No description
by

Katelynn Dorn

on 27 April 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of 29.1 Models of the Solar System

Kepler's Laws
hired by Tyco Brahe to explain his observations in equations
3 Laws:
law of Ellipses
law of Equal Areas
law of Periods
Law of Ellipses
ellipse- path of orbit
oval determined by two points (foci)
the sun is one focus
perihelion- orbit closest to sun
aphelion- point farthest from sun
astronomical unit- average of these
Law of Equal Areas
Earth moves faster when closer to sun and slower when farther from sun
a line from center of sun to center of earth sweeps through equal areas in two different places as long the time frames are the same
Law of Periods
orbit period- time required for planet to make one rev. around sun
r^3 = p^2
If Jupiter is 5.2 AU's from the sun, what is the length of its period?
Newton's Application of Kepler's Laws
inertia- tendency of body to move in a straight line
gravitational pull of sun keeps planets in orbit
Ancient Models
Aristotle- geocentric
did not explain retrograde motion- heavenly bodies reversing direction
Ptolemy- each planet had 2 revolutions
around axis
epicycles- moving in a series of small circles
29.1 Models of the Solar System
Copernicus's Model
heliocentric- planets revolve around sun
each planet moves at a different speed but same direction around sun
Galileo confirmed this model with telescope in 1600s
Full transcript