Ecliptic/Quizzes/Quiz 2

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This is one of two quizzes pertinent to [Ecliptic (permalink)] that is also relevant to the Antikythera_mechanism/Quizzes. Randomized versions of this quiz are available on this Testbank. See also How to use this testbank. (These quizzes will be linked to w:Ecliptic after they have been verified.)

  • For hints on how to solve some of these problems visit this Gallery.

Ecliptic quiz 2 (advanced-geocentric) version A[edit]







  

1

Neither the ecliptic nor the path taken by the Moon are exact great circles because neither precisely closes on itself after one trip around the celestial sphere.

true
false

2

A new or full moon occurs every time the Sun is on a node.

true
false

3

A new or full moon occurs every time the Moon is on a node.

true
false

4

A lunar eclipse occurs when the Moon and Sun are on the same node.

true
false

5

A lunar eclipse occurs when the Moon and Sun are on opposite nodes.

true
false

6

The Sun spends more time within 1 degree of a node than the Moon does

true
false

7

The Moon spends more time within 1 degree of a node than the Sun does

true
false

8

If both the ecliptic and the Moon's path on the celestial sphere remained constant

there would not be any lunar eclipses
there would be an lunar eclipse every full moon
there would be two eclipse seasons in exactly one year

9

If the Moon's path on the celestial sphere was the same as the celestial equator

there would be two eclipse seasons in exactly one year
there would be an lunar eclipse every full moon
there would not be any lunar eclipses

10

If you want to watch the same star rise every morning before sunrise, you will need to set your alarm by approximately _______ minutes earlier each morning because the Sun appears to drift________ with respect to the zodiacal stars. (Hint: Make a sketch)

1;  eastward
4;  westward
4;  eastward
1;  westward

11

If you want to watch the same star rise every morning before sunrise, you will need to set your alarm by approximately _______ minutes earlier each morning because the stars appears to drift________ with respect to the Sun. (Hint: Make a sketch)

4;  westward
1;  eastward
1;  westward
4;  eastward