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Astronomy Chp 1
| Question | Answer |
|---|---|
| What is retrograde motion? | Occasional east to west motion of the planets relative to the stars |
| Which phase of the Moon do you expect to see setting at sunset? | new moon |
| When does the full Moon phase occur? | When the Earth is between the Sun and the Moon |
| When does the new Moon phase occur? | When the Moon is between the Earth and the Sun |
| Which phase of the Moon do you expect to see high in the sky at midnight? | full moon |
| Which phase of the Moon do you expect to see rising at dawn? | Waning crescent |
| During which phase of the Moon do you expect to observe a lunar eclipse? | full moon |
| During which phase of the Moon do you expect to observe a solar eclipse? | new moon |
| When would you expect to see the Moon near the North Star? | never |
| As you are sailing in the open ocean, you observe that the North Star appears lower in the horizon every night. In which direction are you traveling? | south |
| Which of the following would you expect to observe during the December solstice in Australia? | none of the above |
| What is Kepler's second law focus on? | the orbital speed of a planet varies |
| What does Kepler's third law focus on? | the time to orbit the sun is related to its orbit's size |
| What is the Astromical Unit | The average distance from the Earth to the Sun |
| Why does Haley's comet come closer to the sun that the earth | its orbit is very elongated |
| Relative to the stars, the Moon moves from _____ to ______. | west, east |
| In the _________ models, the Sun is assumed as the center of the solar system. | Heliocentric |
| Galileo was the first to observe the phases of _____. | Venus |
| In Copernicus’ model of the solar system, the planets orbited the _____ in ______ orbits. | Sun, circular |
| ______ major contribution to astronomy is his extensive series of measurements of planetary positions. | Tycho Brahe’s |
| What does Kepler's first law focus on? | elliptical orbit of the planets with the Sun as the focus |
| Which term is used for Ptolemy | Epicycle |
| Which term is used for Eratosthenes? | Circumference of the Earth |
| Which term is used for Aristotle | Spherical Earth |
| Which term is used for Aristarchus? | Heliocentric |
| Which term matches best with Copernicus? | Heliocentric |
| Which term matches best with Tycho Brahe? | Records of planetary positions |
| Which term matches best with Galileo? | Moons of Jupiter |
| A solar eclipse occurs during ___________. | a new Moon |
| A lunar eclipse occurs during ___________. | a full Moon |
| The solstice occurs during ___________. | the winter |
| An equinox occurs during ___________. | the spring |
| Which planet’s orbital period is approximately 30 Earth years (within 10% or better)? Jupiter, Mars, Mercury, Saturn, no Planet to match | Saturn |
| Which planet’s orbital period is approximately 0.1 Earth years (within 10% or better)? Jupiter, Mars, Mercury, Saturn, no Planet to match | No planet to match |
| Which of Kepler's laws predicts the retrograde motion of planets? | 3rd law |
| Do Keplers laws predict that a planet running a lap in the outer land of a track takes longer? | no |
| What is the ecliptic | The extension of the Earth’s path on the celestial sphere |