Flashcard Revolutionary Scientists

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What is the Geocentric Model?

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The Geocentric Model is an astronomical theory that places the Earth at the center of the universe, with all other celestial bodies orbiting around it.

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What is the Heliocentric Model?

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The Heliocentric Model is an astronomical theory that posits the Sun at the center of the universe, with the Earth and other planets orbiting around it.

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Who proposed the Heliocentric Model?

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Nicolaus Copernicus proposed the Heliocentric Model in the 16th century.

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What are Newton's Three Laws of Motion?

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1. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force. 2. Force equals mass times acceleration (F=ma). 3. For every action, there is an equal and opposite reaction.

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Who is known for the Theory of Gravity?

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Sir Isaac Newton is known for formulating the Theory of Gravity.

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What did Ptolemy contribute to astronomy?

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Ptolemy published a star catalog that supported the Geocentric Model, which was accepted for many centuries.

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What is the significance of Kepler's laws?

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Kepler's laws describe the motion of planets around the Sun, establishing that orbits are elliptical, not circular.

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What is the difference between the Geocentric and Heliocentric models?

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The Geocentric model places the Earth at the center of the universe, while the Heliocentric model places the Sun at the center.

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What role did Galileo play in the scientific revolution?

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Galileo Galilei made significant contributions to the scientific revolution, including improvements to the telescope and support for the Heliocentric model.

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What is an orbit?

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An orbit is the gravitationally curved trajectory of an object around a point in space, such as a planet around a star.