# Exam three is tonight at 6 pm Teams 1-33: EPS 103 Teams 34-67: Leon Johnson 339 Teams 68-101: Roberts 101 Teams 1-33: EPS 103 Teams 34-67: Leon Johnson.

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Exam three is tonight at 6 pm Teams 1-33: EPS 103 Teams 34-67: Leon Johnson 339 Teams 68-101: Roberts 101 Teams 1-33: EPS 103 Teams 34-67: Leon Johnson 339 Teams 68-101: Roberts 101

What would you prefer? A.Go through the review sheet (like last time). B.First “click” through the practice exam, then spend remaining time on the review sheet. A.Go through the review sheet (like last time). B.First “click” through the practice exam, then spend remaining time on the review sheet.

Practice Exam

 How do we know the moon is closer to us than the Sun? A. Solar eclipses B.Lunar eclipses C.Moon’s revolution is shorter D.a and c E.b and c  How do we know the moon is closer to us than the Sun? A. Solar eclipses B.Lunar eclipses C.Moon’s revolution is shorter D.a and c E.b and c

 Mars exhibit retrograde motion when ____. a)Earth is passing it b)it is passing Earth c)its speeding up d)its slowing down  Mars exhibit retrograde motion when ____. a)Earth is passing it b)it is passing Earth c)its speeding up d)its slowing down

 Mars exhibits retrograde motion for about ______. a)10 minutes b)one night c)four weeks d)3 hours  Mars exhibits retrograde motion for about ______. a)10 minutes b)one night c)four weeks d)3 hours

 Kepler realized that the orbits of the planets are circular. a.True b.false  Kepler realized that the orbits of the planets are circular. a.True b.false

 Earth would have less gravitational attraction if ____. a)it had no atmosphere b)it had no magnetic field c)it had less mass d)a and b e)b and c  Earth would have less gravitational attraction if ____. a)it had no atmosphere b)it had no magnetic field c)it had less mass d)a and b e)b and c

 Saturn exhibits seasons because ___ a)it has an atmosphere b)it has a 27 degree tilt c)it has a large magnetic field d)a and b e)a and c  Saturn exhibits seasons because ___ a)it has an atmosphere b)it has a 27 degree tilt c)it has a large magnetic field d)a and b e)a and c

 The Ptolemic model of the solar system is incorrect because ____. a)his orbits were circular b)he had the Sun at the center c)he had the Earth at the center d)a and b e)a and c  The Ptolemic model of the solar system is incorrect because ____. a)his orbits were circular b)he had the Sun at the center c)he had the Earth at the center d)a and b e)a and c

 Suppose tonight the Moon is full in Bozeman. Tonight in Australia, the phase of the moon will be _____. a)waxing crescent b)waning crescent c)gibbous d)new e)full  Suppose tonight the Moon is full in Bozeman. Tonight in Australia, the phase of the moon will be _____. a)waxing crescent b)waning crescent c)gibbous d)new e)full

 A ____ eclipse is visible on about half the planet. a)solar b)lunar c)solar and lunar  A ____ eclipse is visible on about half the planet. a)solar b)lunar c)solar and lunar

 Erastothenes determined the size of Earth by watching the Sun _____. a)from two locations, separated by longitude b)from two locations, separated by latitude c)from one location  Erastothenes determined the size of Earth by watching the Sun _____. a)from two locations, separated by longitude b)from two locations, separated by latitude c)from one location

A B C D First quarter moon is overhead

A B C D Waxing gibbous high in the southwest sky

A B C D full moon is setting

A B C D First quarter moon is rising

 Galileo found evidence to support the heliocentric model. a)true b)false  Galileo found evidence to support the heliocentric model. a)true b)false

 Low tide happens when the Moon is ____ a)overhead b)setting c)directly below us d)anywhere  Low tide happens when the Moon is ____ a)overhead b)setting c)directly below us d)anywhere

 The Gregorian calendar is a ___ calendar. a)lunar b)solar c)a and b  The Gregorian calendar is a ___ calendar. a)lunar b)solar c)a and b

 Do Kepler’s laws apply to planets the orbit stars other than our Sun? a)yes b)no  Do Kepler’s laws apply to planets the orbit stars other than our Sun? a)yes b)no

 Kepler’s data of Mars’ orbit revealed no evidence of an epicycle because _____. a)he did not have enough data b)no epicycle exists  Kepler’s data of Mars’ orbit revealed no evidence of an epicycle because _____. a)he did not have enough data b)no epicycle exists

Review sheet items

Unit 8  Describe how Eratosthenes determined the size of the Earth.  Explain how we can determine the size of the moon relative to that of the Earth.  How do we determine the distance to and size of the Sun relative to that of the Earth? What part of this process is most prone to error?  Describe how Eratosthenes determined the size of the Earth.  Explain how we can determine the size of the moon relative to that of the Earth.  How do we determine the distance to and size of the Sun relative to that of the Earth? What part of this process is most prone to error?

Unit 9  Describe the three philosophical assumption behind Ptolemy’s model.  Describe Ptolemy’s model of the solar system and the evidence it had to support.  Explain retrograde motion of planets in terms of Ptolemaic and heliocentric models.  Describe the three philosophical assumption behind Ptolemy’s model.  Describe Ptolemy’s model of the solar system and the evidence it had to support.  Explain retrograde motion of planets in terms of Ptolemaic and heliocentric models.

Unit 10  Describe Kepler’s three laws. To what do they apply?  Describe Newton’s three laws. What does the force of gravity depend on?  Explain how Kepler used Tycho’s data to determine the orbit of Mars.  Describe Kepler’s three laws. To what do they apply?  Describe Newton’s three laws. What does the force of gravity depend on?  Explain how Kepler used Tycho’s data to determine the orbit of Mars.

Unit 11  Describe the evidence Galileo discovered that supported a heliocentric model.  The fact that Venus exhibits all phases supports which model of the solar system? Why?  Describe the evidence Galileo discovered that supported a heliocentric model.  The fact that Venus exhibits all phases supports which model of the solar system? Why?

Appendix B  Explain why the moon exhibits phases. Given a phase of the moon, determine rise and set times (of the moon) or location of Sun and moon in the sky at a given time.  Explain what causes tides and how high and low tides are predicted.  Describe the geometry required for lunar and solar eclipses. Why do they not happen each month?  Explain why the moon exhibits phases. Given a phase of the moon, determine rise and set times (of the moon) or location of Sun and moon in the sky at a given time.  Explain what causes tides and how high and low tides are predicted.  Describe the geometry required for lunar and solar eclipses. Why do they not happen each month?

Seasons, Calendars  Describe the Gregorian calendar in terms of lunar and solar time scales.  Explain in words and drawings why the Earth exhibits seasons.  Describe the Gregorian calendar in terms of lunar and solar time scales.  Explain in words and drawings why the Earth exhibits seasons.

In your teams… Brainstorm possible essay questions

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