AS300-U1C2L2 - The Moon: Earth's Fellow Traveler Page 1
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1 AS300-U1C2L2 - The Moon: Earth's Fellow Traveler Page 1 Name: Flight Date: 1 What was Aristarchus s map of the Earth, Sun, and Moon missing? A Scale B Relative size of the Earth, Moon and Sun C A geocentric basis D Time elapsed for one full orbit by the Earth 2 How far is the Moon from Earth? A 180,500 miles B 212,500 miles C 240,000 miles D 327,000 miles 3 What do we call the angle between two lines that start at the observer and go to opposite sides of the object? A Angular diameter B Angular measurement C Angular size D Angular degree 4 When does the Moon appear to be larger? A At its apogee B During neap tides C At its perigee D During autumn tides 5 What happens when the Sun and the Moon line up with Earth, near the times of a full or new moon? A Neap tides B Tidal friction C Precession D Spring tides 6 Why does a high tide occur on the opposite side of the Earth from the Moon? A The Moon pulls the ocean away from Earth B The Moon pulls the main body of Earth away from the ocean C The Sun pulls the ocean away from Earth D The Sun exerts a strong gravitational pull
2 AS300-U1C2L2 - The Moon: Earth's Fellow Traveler Page 2 7 What does the period of the Moon s rotation exactly match? A The Moon s revolution B The Earth s rotation C The Earth s seasons D The Moon s phases 8 What has slowed the Moon down? A Thickening of its atmosphere B Accumulation of space dust C Tidal friction D Gravity from comets and meteorites 9 What force causes Earth to change its spin? A Centrifugal force B Parallax C Inertia D Gravity 10 What will the precession of the Earth mean eventually? A Another Ice Age B A new North Star C A collision with the Moon D A slower rotation 11 What almost completely covers the Moon s far side? A Craters B Volcanoes C Dry ice D Lava 12 What caused lunar mountains? A Shifting tectonic plates B Volcanoes C Millions of ancient craters D Ancient piles of meteorites 13 What is one drawback of the fission theory of the Moon s origin? A The Moon is much less dense than Earth B Colliding celestial objects don t easily capture one another C The geologic similarity and differences of the Moon and Earth D No one has offered a satisfactory explanation of how a spinoff might have Occurred
3 AS300-U1C2L2 - The Moon: Earth's Fellow Traveler Page 3 14 What theory of the Moon s origin best fits the data we have now? A Capture theory B Large impact theory C Fusion theory D Double planet theory 15 The ancient Greeks came close to having a realistic map of the Solar System about 2,000 years ago. 16 The Moon is almost one-half the size of Earth. 17 The Moon keeps the same face to Earth at all times. 18 The Moon s crust is thinner on the side facing the Earth. 19 The Moon appears to be larger at some times than others because its distance from Earth varies.
4 AS300-U1C2L2 - The Moon - Earth's Fellow Traveler Page 4 1 How does the Moon cause tides on Earth? 2 How were maria formed on the Moon? 3 Scientists can use the formula to calculate the diameter of the Moon. 4 The Moon s orbit is a fairly ellipse. 5 A spinning top wobbles around, keeping the same angle with the table s surface until slows it down. 6 Sir George Howard Darwin proposed the theory in which a combination of a fast rotation of Earth and the force of solar tides caused a large glob of stuff to spin off from the area where the Pacific Ocean is now. 7 In the 1970s A. G. W. Cameron and William Ward of Harvard University proposed the Theory. 8 List four theories for the Moon s origin.
5 AS300-U1C2L2 - The Moon - Earth's Fellow Traveler Page 5 9 List the two principal features of the moonscape.
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