Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CH.2
definitoins verying from geocentric thoery to foucalt pendulum
| Term | Definition |
|---|---|
| Geocentric theory | The earth is the center of the universe inside layers of crystal balls also same as Ptolemaic theory |
| Heliocentric theory | The sun is at the center of our solar system and the planets orbit it |
| Copernicus | Solved retrograde motion, Came up with the Heliocentric theory, wrote the book revelotions explaining why the earth rotates on its axis |
| Galileo | First to use the telescope to look at the stars, Pushed Heliocentric theory and got trailed house arrest, used four moons of Jupiter to prove smaller objects orbit larger objects |
| Ptolemy | Came up with Gt, believed the earth eccentric orbits, epicycles to solve retrograde motion which are little loops planets make on their axis |
| Tycho Brahe | Believed the Geocentric theory while his data proved the Heliocentric theory,spent 20years in Hven observatory palace, Worked with Johannes Kelper |
| Johannes Kepler | Christian Mathematician, Worked with Tycho Brahe, Came up with three laws of planetary motion |
| Sir Issac Newton | discovered the law of gravitation: any two objects that exert force on each other relative to their mass and distance from each other. |
| William Bessel | First person to see Stellar Parallax through a very powerful telescope in 1833 |
| 3 laws of planetary motion | 1st Law: planets orbit the sun in elliptical orbits 2nd Law: planets' orbits speed up when they are closer to the sun on their ellipse. 3rd Law: further a planet is from the sun the longer it takes to orbit |
| deferent | Crystal spheres |
| Foucault Pendulum | A machine in constant motion where the earth turns under it |
| Inertia | Objects stay still until a force makes them move, or objects stay in motion until a force makes them stop |
| Rotation | To spin on an axis that passes through the center of an object |
| Projectile | an object propelled through the air |
| Solstice | when the north pole for the Northern hemisphere is either tilted closer or farther away from the sun |
| Equinox | When daylight and nighttime are equal |
| Meteors | Space rocks that hit the forward face of earth in its orbit, proving revolution which is the orbit the earth takes around the sun |
| Ecliptic Plane | An imaginary plate/surface on which all the planet's orbit and travel through space |
| axis and axis tilt | axis an imaginary line passing through he center of an object about which objects spins and rotates Earth 23.5 degrees from straight up |
| Coriolis Effect | the change in the motion path of wind,water, or objects due to earth's rotaion |
Created by:
NehaJ
Popular Earth Science sets