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Natty World

First Test

Eccentric Orbits with Equant Ptolemy
Epicycles and Eccentrics Ptolemy
Ptolemy's observations were standard for how long? 1,500 years
Perfect Celestial Spheres? Aristotle
Violent Motion? Aristotle
Copernicus model? Heliocentric
What was used against Copernicus? Parallax
Galileo used what for observations? Telescope
How did Copernicus explain Retrograde? 2 planets moving 2 different speeds
Indirect Vs. Direct observations (Galileo) Indirect: celestial spheres aren't perfect, Craters on the Moon, Rings/Ears of Saturn, Earth Leaves the Moon Behind Direct: Phases of Venus
Inclined Plane Galileo's attempt to measure free fall. Used bells and a pendulum on the incline to time the rate of acceleration. Found that there is a constant rate of acceleration no matter what the mass is. The speed at bottom is same no matter angle
Inertia Galileo - Proved by dropping ball down two angled ramps, ball returns to the same height no matter the distance. Just takes longer. Relates to earths rotation.
Created by: 604574680