Review Questions 22C 1-10 (Earth Science)

Give three ways that understanding the interactions of the sun-moon-earth system helps us exercise good and wise dominion?

Any 3 motions of the sun and moon from the following: --to mark the passage of time --to identify key historical events --to navigate --to mark the arrival of seasons --to produce tides for generating energy

When viewed from above the ecliptic plane, what seems to be the common direction of revolution for the sun, moon, and earth system?

Counterclockwise

(True or False) Tides only apply to large motions of the world ocean.

False.

At what point(s) in the lunar cycle can a solar eclipse take? At what point(s) a lunar eclipse?

Solar eclipses can take place only during a new moon. Lunar eclipses can occur only at a full moon.

What are the two reference points that scientists use to determine the astronomical length of a year, a month, or a day?

The earth is the reference point for the synodic (between new moons) period and the distant stars are the reference points for the sidereal (orbit @ the earth) period.

What do we call the path of the sun's apparent motion through the heavens?

The ecliptic.

If the same surface of the moon always faces us, how can we say that the moon is rotating?

The moon must rotate once as it revolves once around the earth. If it didn't, we would see the far side of the moon on the opposite side of its orbit.

What relationships creates the seasons.

The relationships between earth's position in its orbit around the sun and its tilted axis produce the seasons.

Do the sun, moon, and earth all experience the rotations and revolutions? Explain.

Yes. The sun, moon, and earth each have an axis of rotation. They also all revolve around something. The sun revolves around the center of the Milky Way, the earth revolves around the sun, and the moon revolves around the earth.