heliocentric VS geocentric

Geocentric vs Heliocentric

Theories of the Universe

Geocentric Theory

• The Earth is the center of the solar system.

• The moon, the planets, the sun, and the stars all rotate around the earth in circular orbits.

• The Earth stays still.

• The sun is between Venus and Mars.

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  What does "geo-" mean?

• Earth

• sun

• Center

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What does the Geocentric system look like?

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What is at the middle of a Geocentric system?

• Sun

• Neptune

• Earth

• The Universe

How was the Heliocentric model proven?

In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun. ... Galileo discovered evidence to support Copernicus' heliocentric theory when he observed four moons in orbit around Jupiter.

Heliocentric Theory

• The Sun is the center of the Universe.

• The Earth, planets, and stars revolve around the Sun.

• The earth revolves on its own axis

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What does "helios" mean?

• Earth

• center of

• sun

• moon

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What is at the middle of a Heliocentric system?

• Mars

• Moon

• Sun

• Earth

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What does the Heliocentric system look like?

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What is the heliocentric theory?

• The model where the Earth revolves around the Sun.

• The model where the Sun revolves around the Earth.

• The model where no celestial bodies move.

• The model where neither the Sun nor Earth revolve around each other.

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What does the Heliocentric system look like?

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What model does this represent?

• Geocentric 

• Heliocentric 

Solar System

The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

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A model of the solar system in which Earth and the other planets revolve around the SUN.

• Heliocentric

• Geocentric

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What is the name of this model?

• Heliocentric Model

• Geocentric Model

• Circle Model

• Aristotle Model

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What orbits around the center of a Geocentric system?

• Sun, Moons, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

• sun, moons,

  
  

  mercury, venus, mars, jupiter, saturn, uranus, neptune

• Earth, Sun, and all other planets.

• Sun, Moons,

  
  

  Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune.

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This image shows the:

• Geocentric Solar System

• Heliocentric Solar System

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Which has the Sun at the center of the solar system?

• Heliocentric

• Geocentric

Aristotle

He thought Earth was the center of the universe and that the Sun, Moon, planets, and all the fixed stars revolved around it. Aristotle's ideas were widely accepted by the Greeks of his time.

Copernicus

• Copernican system, in astronomy, model of the solar system centered on the Sun, with Earth and other planets moving around it, formulated by Nicolaus Copernicus, and published in 1543. It correctly described the Sun as having a central position relative to Earth and other planets.

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Who supported Copernicus's Heliocentric Model

• Galileo

• Plato

• Ptolemy

• No one

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Who proposed the Heliocentric system?

• Copernicus

• Ptolemy

• Aristotle

• Galileo

Galileo

Using his telescope, Galileo made many observations of our Solar System. He came to believe that the idea that the Sun and other planets orbited around the Earth was not correct. Galileo felt that an astronomer named Copernicus had a better idea. Copernicus believed the Earth and other planets moved around the Sun.

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Who used a telescope to prove that the Earth could not be the center of the universe?

• Ptolemy

• Copernicus

• Kepler

• Galileo

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Which scientific instrument did Galileo use to change the world?

• telescope

• spyglass

• mirror

• magnifying glass

Geocentric Model

In the geocentric system, the Earth is considered to be the center of the solar system. The Moon, the planets, the Sun, and the stars all rotate around the Earth (which stays still), with uniform circular motion. They compose the heavens, which are considered to be ethereal and unchanging.

Heliocentric Model

• The Heliocentric Model is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Universe.

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What is the name of this model?

• Heliocentric Model

• Kepler Model

• Galileo Model

• Geocentric Model

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What is the name of this model?

• Heliocentric Model

• Geocentric Model

• Circle Model

• Aristotle Model

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• geocentric

• heliocentric

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• geocentric

• heliocentric

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Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter

• Galileo Galilei

• Aristotle

• William Herschel

• Claudius Ptolemy

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Which astronomer first observed the phases of Venus and Jupiter's moons with the help of a telescope?

• Gailieo

• Aristarchus

• Kepler

• Aristotle

• Copernicus

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Which has the Sun at the center of the solar system?

• Heliocentric

• Geocentric

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These two astronomers confirmed Copernicus's heliocentric theory with more evidence.

• Galileo and Aristotle

• Kepler and Galileo

• Ptolemy and Kepler

• Aristotle and Ptolemy

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What is the biggest difference between the Geocentric Model and the Heliocentric Model?

• the shape of the planets' orbits

• the movement of the moon

• the center of the solar system

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Who created the geocentric model

• Ptolemy

• Aristotle

• Strabo

• Thales of miletus

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Everything rotates around the earth

• true

• False

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The Sun is at the middle of the solar system

• true

• False

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Which historical scientists promoted the Sun-centered solar system? Pick 3!

• Galileo Galilei

• Ptolemy

• Nicolaus Copernicus

• Aristotle

• Isaac Newton

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what makes the planet hot

• sun

• moon

• neptune

• mercury

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Ptolemy's view of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

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Copernicus' view of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

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What did Ptolemy's and Aristotle's model have in common?

• Both models had Earth as the center of the solar system.

• Both discovered galaxies beyond the Milky Way.

• Both models had the sun as the center of the solar system.

• Both model had objects in solar system have epicycles.

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What is the biggest difference between the Geocentric Model and the Heliocentric Model?

• the shape of the planets' orbits

• the movement of the moon

• the object at the center of the universe

• the brightness of the sun

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Who were the people that popularized the geocentric model?

• Galileo and kepler

• Aristotle and Ptolemy

• Copernicus and Aristarchus

• Brahe and Kepler

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Who was the person that contributed to and helped popularize the geocentric model?

• Galileo

• Ptolemy

• Copernicus

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What does "ge-" mean?

• Earth

• sun

• Center

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The earth centered view of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

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The sun centered view of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

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Who discovered the shape of a planet's orbit is actually an ellipse?

• Ptolemy

• Copernicus

• Kepler

• Galileo

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Based on the belief that the sun is the center of the universe

• heliocentric

• geocentric

• aphelion

• parallax

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Who discovered the shape of a planet's orbit is actually an ellipse?

• Ptolemy

• Copernicus

• Kepler

• Galileo

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the time required for the earth to rotate once on it axis 

• Year
• Month
• Day
• 6 Months

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the time required for the Moon to orbit around the Earth

• Year
• Month
• Day
• 6 Months

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the time required for the earth to orbit around the sun 

• Year
• Month
• Day
• 6 Months

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The study of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

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Issac Newton

• recorded precise observation using large tools
• developed the Laws of Planetary Motion
• was the 1st to use a Telescope
• developed the Law's of Gravity

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Johannes Kepler 

• recorded precise observation using large tools
• developed the Laws of Planetary Motion
• was the 1st to use a Telescope
• developed the Law's of Gravity

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According to the model developed by Copernicus, what causes day and night on Earth?

• Earth rotates on its axis

• Earth revolves around the sun

• Planets orbit the sun in elliptical paths

• All parts of the Solar System move in circular paths

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Which of the theories below was created by Isaac Newton

• Theory of Relativity

• Theory of Big Bang

• Theory of Gravity

• Theory of the Universe

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Which astronomer discovered multiple moons orbiting Jupiter?

• Kepler

• Aristotle

• Galileo

• Copernicus

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Inner planets are larger than the outer planets

• True

• False

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The group of inner planets are known as:

• The Terrestrial Planets
• The Gas Giants
• The Outer Planets
• The Hallow Planets

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What holds the planets in their orbits around the sun?

• gravity
• speed
• string
• air currents

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Which of the following is the largest?

• star
• universe
• cluster
• galaxy

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Space and all the matter and energy in it.

• Space
• Solar System 
• Universe
• Sun

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What is the biggest difference between the Geocentric Model and the Heliocentric Model?

• the shape of the planets' orbits

• the movement of the moon

• the center of the solar system

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Which theory stated that the sun was the center of the solar system?

• Big Bang Theory

• Heliocentric Theory

• Geocentric Theory

• Oscillating Theory

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Which astronomer was known for refining the telescope and discovering the moons of Jupiter?

• Isaac Newton

• Claudius Ptolomy

• Nicolaus Copernicus

• Galileo Galilei

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Which astronomer was known for proposing the Geocentric Theory and creating maps of the earth using latitude and longitude?

• Isaac Newton

• Claudius Ptolomy

• Nicolaus Copernicus

• Galileo Galilei

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Which astronomer was known for proposing that planets revolve in an elliptical pattern instead of circular?

• Johannes Kepler

• Claudius Ptolomy

• Nicolaus Copernicus

• Galileo Galilei

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Which theory stated that Earth was the center of the solar system?

• Big Bang Theory

• Heliocentric Theory

• Geocentric Theory

• Oscillating Theory

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True or False?

Our universe contains billions of galaxies.

• True

• False

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Which astronomer was known for proposing that the Earth was a sphere?

• Aristotle

• Claudius Ptolomy

• Nicolaus Copernicus

• Galileo Galilei

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Fill in the blank:

In the early 1600s, an Italian named Galileo pointed a new tool called the _______________ toward the night sky.

• Sphere

• Telescope

• Orbit

• Kite

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What does the Greek root geo mean as in the word geocentric?

• Sun

• Earth

• Measure

• Center

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What does the Greek root helio mean as in the word heliocentric?

• Sun

• Earth

• Measure

• Center

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What does the Greek root centr mean as in the words geocentric and heliocentric?

• Sun

• Earth

• Measure

• Center

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In the Geocentric model the earth moves

• True

• falseI

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The earth in the Geocentric model moves

• True

• False

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In this illustration, the rings around the Sun represent

• Orbit

• Sun Rays

• Radiation

• Dust Particles

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What invention of Galileo helped other scientists and astronomers prove the Heliocentric model was correct?

• The Telescope

• Spheres with holes in them

• Elliptical machine

• The Microscope