8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

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Orbital mechanics/Saros/Quiz 1/TestbankFrom Wikiversity

Contents

1 SarosQuiz11.1 SarosQuiz1­v1s1

1.1.1 Key to SarosQuiz1­v1s11.2 SarosQuiz1­v2s1

1.2.1 Key to SarosQuiz1­v2s11.3 SarosQuiz1­v1s2

1.3.1 Key to SarosQuiz1­v1s21.4 SarosQuiz1­v2s2

1.4.1 Key to SarosQuiz1­v2s2

SarosQuiz1

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This document contains either a study guide OR pairs of exams taken from the same exam bankIf two exams have the same s­number, then v1 and v2 have the same questions, presented in different(random) order.Exams with different s­numbers have different questions and may not have the same difficulty.Click items in the table of contents and appropriate page should be reached. This feature should allowyou to print only those pages that you need.

At the end of this documentAttribution for the quizzes identifies where the questions were obtainedStudy guide links reading materials and/or relevant equations.

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 2/26

SarosQuiz1­v1s1

1. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

___ a) true

___ b) false

2. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

___ a) time of day

___ b) season of the year

___ c) day of the month

3. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

___ a) 15

___ b) 5

___ c) 8

___ d) 30

4. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

___ a) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

___ b) an unknown Babylonian

___ c) Hipparchus (Greek astronomer: 190 BC­120 BC)

___ d) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 3/26

5. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she isthirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 30

___ b) 15

___ c) 10

___ d) 40

6. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true

___ b) false

7. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of dayshas to do with

___ a) leap years

___ b) a wobble in the Moon's orbit

___ c) precession of the Moon's orbit

___ d) precession of the equinoxes

8. What is so special about 3 Saros cycles (triple Saros)?

___ a) this eclipse will occur at the same day of the month (plus or minus one day)

___ b) this eclipse terminates the Saros (and a new Saros number is assigned.)

___ c) this eclipse will occur with the Moon in the same position on the zodiac.

___ d) this eclipse will occur at the same time of day

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 4/26

9. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

___ b) phase of moon and earth­moon distance

___ c) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

10. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true

___ b) false

11. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

___ a) 1

___ b) 10

___ c) 20

___ d) 40

___ e) 2

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 5/26

Key to SarosQuiz1­v1s1

1. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

+ a) true

­ b) false

2. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

­ a) time of day

+ b) season of the year

­ c) day of the month

3. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

+ a) 15

­ b) 5

­ c) 8

­ d) 30

4. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

­ a) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

­ b) an unknown Babylonian

­ c) Hipparchus (Greek astronomer: 190 BC­120 BC)

+ d) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 6/26

5. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she isthirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

+ a) 30

­ b) 15

­ c) 10

­ d) 40

6. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true

­ b) false

7. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of dayshas to do with

+ a) leap years

­ b) a wobble in the Moon's orbit

­ c) precession of the Moon's orbit

­ d) precession of the equinoxes

8. What is so special about 3 Saros cycles (triple Saros)?

­ a) this eclipse will occur at the same day of the month (plus or minus one day)

­ b) this eclipse terminates the Saros (and a new Saros number is assigned.)

­ c) this eclipse will occur with the Moon in the same position on the zodiac.

+ d) this eclipse will occur at the same time of day

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 7/26

9. What remains nearly the same after a single saros cycle has occured?

­ a) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

+ b) phase of moon and earth­moon distance

­ c) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

10. Saros (or Sar) was the Babylonian word for the Saros cycle.

­ a) true

+ b) false

11. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

­ a) 1

­ b) 10

­ c) 20

+ d) 40

­ e) 2

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 8/26

SarosQuiz1­v2s1

1. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true

___ b) false

2. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of dayshas to do with

___ a) precession of the Moon's orbit

___ b) leap years

___ c) precession of the equinoxes

___ d) a wobble in the Moon's orbit

3. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

___ b) phase of moon and earth­moon distance

___ c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

4. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

___ a) time of day

___ b) day of the month

___ c) season of the year

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 9/26

5. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

___ a) 2

___ b) 10

___ c) 20

___ d) 40

___ e) 1

6. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she isthirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 15

___ b) 30

___ c) 40

___ d) 10

7. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

___ a) 5

___ b) 15

___ c) 30

___ d) 8

8. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

___ a) an unknown Babylonian

___ b) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

___ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

___ d) Hipparchus (Greek astronomer: 190 BC­120 BC)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 10/26

9. What is so special about 3 Saros cycles (triple Saros)?

___ a) this eclipse will occur with the Moon in the same position on the zodiac.

___ b) this eclipse will occur at the same time of day

___ c) this eclipse will occur at the same day of the month (plus or minus one day)

___ d) this eclipse terminates the Saros (and a new Saros number is assigned.)

10. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

___ a) true

___ b) false

11. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true

___ b) false

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 11/26

Key to SarosQuiz1­v2s1

1. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true

­ b) false

2. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of dayshas to do with

­ a) precession of the Moon's orbit

+ b) leap years

­ c) precession of the equinoxes

­ d) a wobble in the Moon's orbit

3. What remains nearly the same after a single saros cycle has occured?

­ a) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

+ b) phase of moon and earth­moon distance

­ c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

4. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

­ a) time of day

­ b) day of the month

+ c) season of the year

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 12/26

5. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

­ a) 2

­ b) 10

­ c) 20

+ d) 40

­ e) 1

6. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she isthirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

­ a) 15

+ b) 30

­ c) 40

­ d) 10

7. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

­ a) 5

+ b) 15

­ c) 30

­ d) 8

8. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

­ a) an unknown Babylonian

­ b) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

+ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

­ d) Hipparchus (Greek astronomer: 190 BC­120 BC)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 13/26

9. What is so special about 3 Saros cycles (triple Saros)?

­ a) this eclipse will occur with the Moon in the same position on the zodiac.

+ b) this eclipse will occur at the same time of day

­ c) this eclipse will occur at the same day of the month (plus or minus one day)

­ d) this eclipse terminates the Saros (and a new Saros number is assigned.)

10. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

+ a) true

­ b) false

11. Saros (or Sar) was the Babylonian word for the Saros cycle.

­ a) true

+ b) false

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 14/26

SarosQuiz1­v1s2

1. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

___ a) 2

___ b) 10

___ c) 40

___ d) 1

___ e) 20

2. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

___ a) season of the year

___ b) day of the month

___ c) time of day

3. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

___ a) true

___ b) false

4. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true

___ b) false

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 15/26

5. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

___ a) an unknown Babylonian

___ b) Hipparchus (Greek astronomer: 190 BC­120 BC)

___ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

___ d) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

6. What is so special about 3 Saros cycles (triple Saros)?

___ a) this eclipse terminates the Saros (and a new Saros number is assigned.)

___ b) this eclipse will occur at the same day of the month (plus or minus one day)

___ c) this eclipse will occur at the same time of day

___ d) this eclipse will occur with the Moon in the same position on the zodiac.

7. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true

___ b) false

8. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and earth­moon distance

___ b) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

___ c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 16/26

9. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

___ a) 15

___ b) 30

___ c) 8

___ d) 5

10. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number ofdays has to do with

___ a) precession of the equinoxes

___ b) leap years

___ c) precession of the Moon's orbit

___ d) a wobble in the Moon's orbit

11. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If sheis thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 15

___ b) 30

___ c) 10

___ d) 40

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 17/26

Key to SarosQuiz1­v1s2

1. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

­ a) 2

­ b) 10

+ c) 40

­ d) 1

­ e) 20

2. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

+ a) season of the year

­ b) day of the month

­ c) time of day

3. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

+ a) true

­ b) false

4. Saros (or Sar) was the Babylonian word for the Saros cycle.

­ a) true

+ b) false

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 18/26

5. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

­ a) an unknown Babylonian

­ b) Hipparchus (Greek astronomer: 190 BC­120 BC)

+ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

­ d) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

6. What is so special about 3 Saros cycles (triple Saros)?

­ a) this eclipse terminates the Saros (and a new Saros number is assigned.)

­ b) this eclipse will occur at the same day of the month (plus or minus one day)

+ c) this eclipse will occur at the same time of day

­ d) this eclipse will occur with the Moon in the same position on the zodiac.

7. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true

­ b) false

8. What remains nearly the same after a single saros cycle has occured?

+ a) phase of moon and earth­moon distance

­ b) phase of moon and position of moon relative to the background stars (i.e. zodiacallocation)

­ c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 19/26

9. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

+ a) 15

­ b) 30

­ c) 8

­ d) 5

10. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number ofdays has to do with

­ a) precession of the equinoxes

+ b) leap years

­ c) precession of the Moon's orbit

­ d) a wobble in the Moon's orbit

11. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If sheis thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

­ a) 15

+ b) 30

­ c) 10

­ d) 40

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 20/26

SarosQuiz1­v2s2

1. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

___ a) 5

___ b) 8

___ c) 15

___ d) 30

2. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and earth­moon distance

___ b) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

___ c) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

3. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true

___ b) false

4. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

___ a) 20

___ b) 10

___ c) 40

___ d) 1

___ e) 2

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 21/26

5. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

___ a) day of the month

___ b) time of day

___ c) season of the year

6. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

___ a) an unknown Babylonian

___ b) Hipparchus (Greek astronomer: 190 BC­120 BC)

___ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

___ d) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

7. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true

___ b) false

8. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

___ a) true

___ b) false

9. What is so special about 3 Saros cycles (triple Saros)?

___ a) this eclipse will occur at the same day of the month (plus or minus one day)

___ b) this eclipse will occur at the same time of day

___ c) this eclipse will occur with the Moon in the same position on the zodiac.

___ d) this eclipse terminates the Saros (and a new Saros number is assigned.)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 22/26

10. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If sheis thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 15

___ b) 10

___ c) 30

___ d) 40

11. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number ofdays has to do with

___ a) precession of the Moon's orbit

___ b) leap years

___ c) precession of the equinoxes

___ d) a wobble in the Moon's orbit

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 23/26

Key to SarosQuiz1­v2s2

1. Your pet lizard is thirsty every 3 days and hungry every 5 days. If she is both thirsty and hungry today,she will be both thirsty and hungry ____ days later

­ a) 5

­ b) 8

+ c) 15

­ d) 30

2. What remains nearly the same after a single saros cycle has occured?

+ a) phase of moon and earth­moon distance

­ b) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

­ c) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)

3. Saros (or Sar) was the Babylonian word for the Saros cycle.

­ a) true

+ b) false

4. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will beapproximately ________ lunar and solar eclipses.

­ a) 20

­ b) 10

+ c) 40

­ d) 1

­ e) 2

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 24/26

5. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse,the ______ will be the same. (Pick the best answer.)

­ a) day of the month

­ b) time of day

+ c) season of the year

6. The name "saros" (Greek: σαρος) was first given to the eclipse cycle by

­ a) an unknown Babylonian

­ b) Hipparchus (Greek astronomer: 190 BC­120 BC)

+ c) Edmond Halley (A friend and colleage of Newton: 1656 AD­1742 AD)

­ d) Ptolemy (Greek astronomer who lived in Egypt: 90 AD­168 AD)

7. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true

­ b) false

8. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occurexactly one Saros later.

+ a) true

­ b) false

9. What is so special about 3 Saros cycles (triple Saros)?

­ a) this eclipse will occur at the same day of the month (plus or minus one day)

+ b) this eclipse will occur at the same time of day

­ c) this eclipse will occur with the Moon in the same position on the zodiac.

­ d) this eclipse terminates the Saros (and a new Saros number is assigned.)

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 25/26

10. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If sheis thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

­ a) 15

­ b) 10

+ c) 30

­ d) 40

11. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number ofdays has to do with

­ a) precession of the Moon's orbit

+ b) leap years

­ c) precession of the equinoxes

­ d) a wobble in the Moon's orbit

8/7/2015 Orbital mechanics/Saros/Quiz 1/Testbank ­ Wikiversity

https://en.wikiversity.org/wiki/Orbital_mechanics/Saros/Quiz_1/Testbank 26/26

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http://en.wikiversity.org/wiki/Orbital_mechanics/Saros

Study guide

http://en.wikipedia.org/wiki/Saros_(astronomy)

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