| Term | Definition |
|
Universe |
everything that exists in this place about 15 billion years old |
|
Radiation and Red Shift |
2 pieces of evidence for the big bang theory |
|
Geocentric Model |
The model in which everything revolves around the earth |
|
Problems with Geo |
Explain Retrograde motion, brightness of the planets (epicycle on the defrent) |
|
Heliocentric Model |
Everything rotates around the sun, earth rotates |
|
Rotation Evidence |
Focault Pendulum, Coriolis effect |
|
Revolution Evidence |
Seasons and constellations |
|
Focault Pendulum |
due to the rotation of earth this object swings in different directions at different times |
|
Coriolis Effect |
North ,right and south ,left, rotation of winds, curved airplanes |
|
perihelion |
Jan 1 closest to sun or foci, fast, kinetic |
|
aphelion |
July 1 farthest from the sun or foci, slow, potential |
|
Moon Phases |
cause by revolution, 29.5 days full to full, 27.3 around |
|
Tides |
rise and fall of oceans waters due to the gravitation pull of earth sun and moon |
|
Spring |
Highest high tide |
|
Neap |
Lowest Low tide |
|
12 |
the time between two highs or lows |
|
Eclipse |
When one celestial object covers another |
|
Weight |
measure of gravity on an object |
|
Mass and Distance |
Gravity depends on |
|
satellite |
any object that travels around another in space |
|
inertia |
keeps things going in the common direction it was put |
|
centripital force |
causes objects to stay in place while going in a circle (technically dont need a seat belt to stay in place, just for saftey) |
|
Eccentricity |
foci over major axis, how oval something is, closer to one |
|
Elipse |
our orbit is slightly oval making it an |
|
gravity |
the pull on an object to its surface |