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2. The Phases of the Moon
3. The Phases of the Moon
4. Is the moon going to show the same lunar phase after one sidereal period? Yes.
No, it will not have completed a full cycle of phases.
No, it will have completed more than a full cycle of phases.
5. The Phases of the Moon
6. The moon orbits counterclockwise around Earth (viewed from the North). => It appears to move eastward against the background of the stars. => The waxing crescent is visible in the morning sky.
in the evening sky.
the whole night, from sunset to sunrise.
only around midnight.
7. The Phases of the Moon
8. The Phases of the Moon
9. The Tides
10. On the day of full moon, high tides occur around noon and 6 p.m.
around noon and midnight.
around 6 a.m. and 6 p.m.
around 6 p.m. and midnight.
Impossible to tell. The times of tides are not correlated with the phases of the moon.
11. Spring and Neap Tides
12. The Tidally Locked Orbit of the Moon The Earth also exerts tidal forces on the Moons rocky interior.
? It is rotating with the same period around its axis as it is orbiting Earth (tidally locked).
? We always see the same side of the moon facing Earth.
14. A total lunar eclipse is a high-performance moon vehicle built by Mitsubishi.
occurs when the moon disappears behind the sun.
occurs when the moon becomes invisible because it is too close to the sun.
occurs when the moon moves through Earths shadow.
occurs when the moon disappears behind Mars.
15. Lunar Eclipses
16. A Total Lunar Eclipse (I)
17. A Total Lunar Eclipse (II)
19. Solar Eclipses
23. If the sun and the moon have the same angular diameter on the sky, does that mean that the sun and the moon actually have about the same size? Yes.
No because the sun is much farther away, but also much larger than the moon.
No, because the sun is much farther away, but also much smaller than the moon.
No because the moon is much farther away, but also much larger than the sun.
No, because the moon is much farther away, but also much smaller than the sun.
24. Earths and Moons orbits are slightly elliptical:
25. What do you expect to see if at the time of a solar eclipse the moon is near apogee, and the Earth is near perihelion? A regular total solar eclipse.
No solar eclipse at all.
A partial solar eclipse with a crescent appearance.
A partial solar eclipse with a ring-like appearance of un-occulted parts of the sun.
A lunar eclipse.
26. Annular Solar Eclipses
28. If the moon was orbiting around the Earth exactly in the plane of the ecliptic, lunar and solar eclipses would occur once every day.
lunar and solar eclipses would occur once a week.
lunar and solar eclipses would occur once a month.
lunar and solar eclipses would occur once a year.
lunar and solar eclipses would never occur.
29. Conditions for Eclipses (I)
30. Conditions for Eclipses (II)