Term
Who was the first to demonstrate that a moving object remains in uniform
motion unless a force is applied on it? |
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Definition
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Term
| Why do we have seasons on Earth? |
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Definition
As the Earth goes around the Sun and the Earth's axis remains pointed toward Polaris,
the Northern and Southern hemispheres alternately receive more and less direct
sunlight. |
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Term
| Aristarchus of Samos is famous for proposing that |
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Definition
| The Sun was at the center of the Universe. |
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Term
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Definition
| The father of celestial mechanics |
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Term
| Does a geocentric model implies that the Earth is spherical? |
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Definition
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Term
| What is Ptolemy famous for? |
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Definition
| He found a way to explain planetary retrograde motions. |
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Term
| Kepler believed in the heliocentric model |
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Definition
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Term
| Who was the first to explain that the tides on Earth are caused by the Moon? |
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Definition
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Term
| Whose data Johannes Kepler used to analyze the orbit of Mars? |
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Definition
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Term
| The __ is the path the Sun follows as it appears to circle around the celestial sphere. |
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Definition
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Term
In the Greek geocentric model, what was the correct order of the celestial
bodies, starting from the center? |
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Definition
| Earth, Moon, Mercury, Venus, Sun, Mars, Jupiter, Saturn, the fixed stars |
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Term
A solar annular eclipse happens when the angular size of the __ is smaller
that the angular size of the __ . |
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Definition
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Term
| Can an annular eclipse of the Moon ever occur? |
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Definition
| No because the shadow of the Earth is always greater than the physical size of the Moon. |
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Term
| Who was the first to use a telescope as a scientific instrument? |
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Definition
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Term
| What does geocentric mean? |
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Definition
| The earth is at the center |
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Term
Who wrote this? A planet orbits the Sun in an ellipse with the Sun located at
one of the focii. |
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Definition
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Term
| Which civilization developed this model? |
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Definition
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Term
| Fearing the Catholic Church, whose works was published the day he died? |
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Definition
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Term
| Which of the following statements about the celestial sphere is not true? |
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Definition
| The "celestial sphere" is just another name for our Universe. |
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Term
| Eratosthenes is famous for calculating |
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Definition
| a very good estimation for the size of the Earth. |
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Term
It is possible to view the Moon in first-quarter phase the day after a total lunar
eclipse. |
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Definition
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Term
| Who was the first to observe that Jupiter had satellites? |
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Definition
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Term
| Who was the first to explain the working of a telescope? |
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Definition
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Term
| Why couldn't Galileo (and others before him) detect stellar parallax? |
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Definition
| Because all stars are too far away for the effect to be detected back then. |
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Term
Which one of these events is most likely to have sparked the start of the
Renaissance period? |
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Definition
| The fall of Constantinople |
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Term
| What is "stellar parallax"? |
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Definition
On an interstellar scale, parallax created by the different orbital positions of the Earth
causes nearby stars to appear to move relative to more distant stars. |
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Term
| You are standing on the Earth's equator. Which way is Polaris, the North star? |
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Definition
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