vs HELIOCENTRIC Whats in Our Solar System Our Solar System consists of a central star the Sun the nine planets orbiting the sun moons asteroids comets meteors interplanetary gas dust and all the space in between them ID: 294509
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Slide1
GEOCENTRIC
vs.
HELIOCENTRICSlide2
What’s in Our Solar System?
Our Solar System consists of a central star (the Sun), the nine planets orbiting the sun, moons, asteroids, comets, meteors, interplanetary gas, dust, and all the “space” in between them.
The nine planets of the Solar System are named for Greek and Roman Gods and Goddesses.Slide3
Age of Enlightenment
A
cultural movement of
intellectuals
in the 17th and 18th centuries, which began first in Europe and later in the American colonies. Its purpose was to reform (change) the way of thinking using reason, challenge related to tradition and faith, and advance knowledge through the scientific method. Slide4
It starts with Scientific Revolution
The Enlightenment started with the Scientific Revolution
People started to question ideas that had been accepted as facts for hundreds of yearsSlide5
Back then, all knowledge
came from the
Catholic Church
The Catholic Church and the
Bible were the source of what was true and false in the world.Slide6
The Inquisition
A
group of decentralized institutions within the judicial system of the Roman Catholic Church whose aim was to "fight against
hereticsSlide7
“Heresy”
denial
of a revealed truth by a
member of the Roman Catholic Church Slide8
GEOCENTRIC
GEO
= EARTH
CENTRIC
= CENTER
They believed the Earth was the center of the universe Slide9
Aristotle
Geocentric Theory
Theorized that Earth was at the center of the universe, and all other heavenly bodies are attached and the rotate around the Earth.
Greek Philosopher
&
Scientist Slide10
Ptolemy
Supports Aristotle’s theory
Ptolemy argued that the Earth was at the center of the universe, from the simple observation that half the stars were above the horizon and half were below the horizon at any time
known as a Mathematician and Scientist Slide11
HELIOCENTRIC
HELIO
= SUN
CENTRIC = CENTER
They believed the sun is the center of the universeSlide12
Nicolaus
Copernicus
Theorized that all the objects in the solar system revolve about the sun and therefore the sun is the center of the universe.
Renaissance Mathematician
and
AstronomerSlide13
Galileo
Galilei
supports Copernicus’ theory
Given credit for creating the first
telescope.
Galileo's
observations
usin
g the telescope
strengthened
his belief in Copernicus' theory that Earth and all other planets revolve around the Sun.
Italian Astronomer Slide14
Galileo
Galileo wrote about his observations and thus angered the Roman Catholic Church. The Church eventually placed him under house arrest. The Inquisition was the tribunal of the Roman Catholic Church at this time. The Inquisition made Galileo kneel before them and confess that the heliocentric theory was false.Slide15
Galileo was right all along
In 1992, the Roman Catholic Church finally repealed the ruling of the Inquisition against Galileo. The Church gave a pardon to Galileo and admitted that the heliocentric theory was correct. This pardon came 350 years after Galileo's death.Slide16
Johannes
Kepler
Three laws of planetary motion
1. The Planets move in orbits about the Sun that are
ellipses path.
2 . The planets move such that the line between the Sun and the Planet sweeps out the same area in the same area in the same time no matter where in the orbit.
3. The square of the period of the orbit of a planet is proportional to the mean distance from the Sun cubed.
German Mathematician and AstronomerSlide17
Sir Isaac Newton
derived the
3 laws of motion
gravitation between two masses.
Earth's
surface causes a
9.8 m/s/s
acceleration of any object placed there, we often call this ratio the acceleration of gravity
.
http
://
teachertech.rice.edu/Participants/louviere/Newton/law1.html
English Physicist and Mathematician Slide18
Let’s Review Slide19
Geocentric
Key Ideas:
“Geo” = Earth
“Centric” = Center
“Earth-centered”Earth is the center of the solar
system
Earth is stationary (not moving
)
and everything is moving around
us
In your
ISN,
draw a picture
of
what the geocentric model looks like… Slide20
Heliocentric
Key Ideas:
“
Helio
” = Sun“Centric” = Center“Sun-centered”The Sun is the center of the solar system
Earth rotates on its own axis AND revolves around the Sun
In your
ISN,
draw a picture of what the heliocentric model looks like… Slide21
1
.
draw, name
and describe in words the two theories of the solar
system.2. Put a star next to the one that has been proven the accurate model of the solar system.3. Name the two scientists who came up with the CORRECT solar system model theory.Closing