Astronomy Part 2 Review 23-24

The tilt of the Earth's axis of rotation is responsible for the _____ .

• ocean's tides

• length of a day

• length of a year

• seasons

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Tides are caused by _____ .

• gravity

• wind

• ocean currents

• the Sun's heat

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Which lunar phase would be observed from Earth if the Moon were at a 90° angle with Earth and the Sun?

• New

• Full

• Waxing Crescent

• 1st Quarter

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The winter solstice in the Northern hemisphere occurs when the Earth is in which position?

• A

• B

• C

• D

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As Earth spins on its axis, producing night and day, it also moves around the Sun in an elliptical orbit that requires about 365 1/4 days to complete. The Earth's axis is tilted with respect to its orbital plane. When the earth's axis points towards the sun, it is _____ for that hemisphere.

• day

• night

• summer

• winter

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The yellow circle represents the sun. If you were standing on the blue circle (Earth) and looking up at the moon, you would be seeing the _____ moon.

• full

• new

• crescent

• gibbous

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The vernal, or spring, equinox signals the beginning of spring. At this time of the year, the sun appears to be directly over Earth’s equator. How does this affect the day length during this time of year?

• 
  Day length is at its maximum.

• Day length is at its minimum.

• Day length equals night length.

• There is no change in day length throughout the year.

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This is a _____ gibbous moon.

• crescent

• new

• waning

• waxing

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In this diagram, the Moon is directly in front of the Earth. What would MOST LIKELY happen if the Moon was only partially in front of the Earth?

• 
  There would be a total solar eclipse.

• There would be a partial eclipse.

• 
  There would not be a solar eclipse.

• 
  There would be a lunar eclipse.

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Which fact about the moon, as seen from the earth, is evidence that the amount of time the Moon takes to complete one rotation and one revolution are nearly identical?

• We always see the same side of the Moon from Earth

• A full moon only lasts about 2 days

• There are a few days each month when we cannot see a moon at all

• Sometimes we can see the moon during the day

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