Which model is most similar to that of Aristarchus?
Answers
Answer: Sun at the center.
Aristarchus was a Greek scientist who proposed the theory that its not Earth which is fixed, its the Sun that has a fixed position and is placed at center where are all other planets are located at some distance from it and revolve around it.
This theory is referred as "Heliocentric". His theories were even attributed by Nicolaus Copernicus and was even know as Copernicus heliocentrism.
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Which model is most similar to that of Aristarchus?
1
Why was Aristarchus's model not accepted? Check all that apply.
Aristarchus was not as famous as Aristotle.
Aristarchus could not answer some important questions about the model.
Choose the correct answer to complete the paragraph about the acceptance of the heliocentric model.
In the second century BCE, the Greek astronomer Ptolemy tried to explain the backward movement of the planets by using a solar system model that included ____________. For centuries, this was the accepted model. During the Renaissance, Nicholas ___________ discovered the old heliocentric model of Aristarchus. In Aristarchus's model, the rising and setting of the Sun was explained by the movement of the ________________.
epicycles
Copernicus
Earth
Which contributions did Galileo make to the model of the solar system? Check all that apply.
data that showed that planets reflected sunlight similar to Earth's moon
observations of the moons of Jupiter rotating around the gas giant
Which contributions did Johannes Kepler make? Check all that apply.
He solved Ptolemy's model by proving elliptical orbits.
He determined that planets move faster when closer to the Sun.
He discovered laws of planetary motion.
this was in a book