Explain why you might descibe the orbital motion of the moon with the statement, "The moon is falling".
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What is the difference between a hypothesis, a theory and a law? (Textbook Review Question)
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How did the Alfosine Tables, the Prutenic Tables, and the Rudolphine Table differ? (Textbook Review Question)
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Review Galileo's telescopic discoveries and explain why they supported the Coperican model and contradicated the ptolemaic model. (Textbook Review Question)
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Galieo was condemned by the Inquisition, but Kepler, also a Copernican was not. Why not? (Textbook Review Question)
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How do Newton's laws lead you to conclude that gravitation has to be universal? (Textbook Review Question)
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(a) In which of these situations can retrograde motion be observed? (hmwk question)
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A superior planet (one outside the orbit of the observer's planet)
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Viewed from the surface of a planet, an observer is likely to see one of the moons that orbit the planet exhibit retrograde motion. (T/F)
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False
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Which of these are characteristics of retrograde motion? (hmwk question)
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A planet apparently reverses direction from its orbital path.
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A planet moves fastest in its orbit. (hwmk question)
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when it is closest to the Sun.
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According to Kepler's first law, the orbits of the planets are what shape? (hmwk question)
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Ellipses
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In order to sweep out equal areas in equal times, a planet (hmwk)
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must change its speed throughout its orbit.
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An ice skater glides forward effortlessly due to which of these Laws? (hmwk)
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Newton's first law
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How is force related to acceleration? (hmwk)
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If you push on a wall, how hard does the wall push on you? (hmwk)
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Plato proposed that all heavenly motion is which of the following? (hmwk)
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Why did Copernicus use epicycles in his system? (hmwk)
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His model did not predict planetary positions as well as the Ptolemaic system.
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Why didn't Copernicus' system predict the positions of planets as well as Ptolemy's?
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Galileo made several important telescopic discoveries.
(a) How did Galileo's telescopic discovery of craters on the moon contradict Ptolemaic theory?
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(b) How did Galileo's telescopic discovery of the moons of Jupiter contradict Ptolemaic theory?
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c) How did Galileo's telescopic discovery of sunspots contradict Ptolemaic theory?
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It showed that a heavenly body was not perfect.
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d) How did Galileo's telescopic discovery that Venus went through the same cycle of phases as the moon contradict Ptolemaic theory?
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It was possible in Copernican theory, but not Ptolemaic theory.
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In 1609, Kepler formulated the first two of what would eventually be three laws of planetary motion.
(a) According to Kepler's laws, which is not true about a planet's orbit?
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The sun is at the center.
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(b) Which basic belief of classical astronomy was not overthrown by Kepler's laws?
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Recall the experiment from your textbook where a feather and a steel hammer are dropped at the same time from the same height above the ground.
(a) Which object falls faster?
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it depends on how much air resistance in present
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(b) Which object falls faster here on Earth?
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the hammer, because of air resistance
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c) Which object falls faster on the moon?
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(d) Which object would Aristotle think should fall faster?
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(e) Why would Aristotle make the choice that he did in the previous question?
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(a) Which is an unchanging measurement of the amount of matter an object is made of?
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(a) Which is an unchanging measurement of the amount of matter an object is made of?
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(b) Which is the measurement of the force that gravity exerts on an object?
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(c) Which measurement would be different for you on the moon?
