Physical science

Created by

Joanna marie

Cards (42)

Sirius 
Egyptians established a 365-day calendar based on the track of the star .
pyramid of Giza 
was built around 2560 BCE in Egypt
Orion 
three pyramids represent the belt stars of the constellation .
Stonehenge 
was constructed in 3000 BCE in England. It was thought to have been an observatory used to predict solar and lunar eclipses.
Stonehenge 
It was built so that on the summer solstice, the sun would rise above one of the main stones.
geocentric model 
Earth is considered as the center of the universe.
eudoxus model 
Earth is the only planet that is fixed.
Eudoxus model 
thought that each planet moved in circles within circles around the Earth.
Eudoxus model 
Imagine the planets are riding on a series of invisible carousels, with each carousels
Aristotle Model 
He called the outermost sphere as the Prime Mover.
Aristotle Model 
He thought the universe was made up of concentric spheres, like layers of an onion, with Earth at the center. Each celestial body, like the Sun, Moon, planets, and stars, was attached to its own sphere.
Aristotle Model 
He based his model on Eudoxus/ model.
Ptolemy model 
became widely accepted for centuries and served as the main cosmological model in Western civilization until it was eventually replaced by models proposed by modern scientists we know today.
Ptolemy model 
Each planet had its own set of epicycles and deferents (larger circles), with the Earth fixed at the center of these deferents amd were complex enough to accurately predict the observed motions of the planets.
Ptolemy model 
He suggested that the planets moved in small circles called epicycles, which themselves moved along larger circles around the Earth.
Copernicus' model 
He kept the concept of uniform circular motion of Ptolemy's epicycles.
retrograde motion 
they backtrack for a while, that is, they move westward before
resuming their eastward motion. This pattern is called
Nicolaus Copernicus 
he believed that Earth spins on its axis every day and revolves around the sun like the other planets. Only the moon orbits the Earth.
plato 
He assumed that all motions in the universe are
perfectly circular and all heavenly objects are ethereal.
Eudoxus model 
using the series of 27 concentric
spheres on which the sun, the moon, and the planets moved in perfect circular motion
Cnidus Eudoxus 
He proposed the Eudoxus model
Eudoxus 
He was the first to "save the appearances" that Plato referred to,
eudoxus model 
He did not assign any sphere for Earth because in his model Earth is fixed.
earth, water, air, and
fire
four
primordial elements in this sequence;
Prime Mover 
rotated the outermost sphere with constant
angular speed causing the other spheres to rotate as well.
Philolaus 
- a Greek astronomer initially proposed a pyro
centric model of the universe
Pythagorean model 
Heavenly bodies were supposed to move around a "fire" located at the center of the universe.
Pythagorean model 
central fire" as the center of the cosmos
stellar parallax. 
The apparent displacement of a star because of a change in
the observer's point of view is called
Copernicus' model 
He kept the concept of uniform circular motion of
epicycles.
copernicus' model 
asserted that Earth spins on its axis every day and revolves around the sun like the
other planets, only the moon orbits the Earth
Revolutionibus Orbium Coelestium 
Copernicus's heliocentric theory is written on his book
Aristotle Model 
simplest model
retrograde motion 
apparent change in the movement of the heavenly bodies in the sky
prime mover 
the unmoved mover mover other thing,but is not itself moved by any prior action
Pythagorean's Hearth of the universe 
in Pythagorean model what is the meaning of counter-earth
Pythagorean model 
earth is a sphere but an oblate sphere
Pythagorean model 
the center of the universe is a fire wherein the central fire is unseen
Claudius Ptolemy 
he proposed the epicycles and deferent
Rotation 
1 day