Models of the Solar System

Front

Aristotle and Ptolemy's model of the solar system

Back

Geocentric model

Front

Reason for acceptance of Aristotle and Ptolemy's model

Back

Explained the motion of the heavens

Front

Feature of Copernicus's model

Back

Planets orbiting in nested circles

Front

Copernicus's model vs. accepted ideas

Back

Went against the accepted religious ideas

Front

Kepler's 2nd Law explanation

Back

A line from the sun to the planet sweeps out equal areas in equal amounts of time

Front

Discovery with Tyco Brahe

Back

Planets speed up and slow down but cover the same area

Front

Planet movement away from the sun

Back

Planets move slower

Front

Reason for change in planet speed

Back

Gravitational pull and planet's inertia

Front

Kepler's 1st Law describes each planet's orbit around the sun as an __________.

Back

Ellipse (oval shape) that is almost circular

Front

Kepler's 3rd Law provides the __________ for calculating the motion of objects in space.

Back

Mathematical formula