Earth Science wk 6

Temperatures on the Moon’s surface are

• always very hot.

• always very cold.

• moderate.

• either very hot or very cold.

According to the most commonly accepted theory of the Moon’s formation, the Moon is made from

• materials from Earth only.

• materials from asteroids and comets.

• materials from Mars.

• materials from Earth and the body that hit it.

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The fact that Earth observers always see the same side of the Moon is explained by the Moon’s

• eclipse.

• penumbra.

• synchronous rotation.

• gravity.

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During an annular solar eclipse, the Moon

• always appears reddish in color.

• passes through Earth’s shadow.

• is near perigee.

• does not completely block the Sun.

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In the diagram, what season is it in the northern hemisphere?

• Autumn

• Winter

• Spring

• Summer

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Our solar system formed about 5 billion years ago when 

• a large planet broke into many pieces.

• a cloud of interstellar dust and gas began to condense.

• stars collided with one another.

• Jupiter formed as the largest planet.

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Which law of planetary motion does the diagram show?

• Kepler’s first law

• Kepler’s second law

• Kepler’s third law

• Newton’s law of universal gravitation

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Which best describes a planet’s retrograde motion?

• apparent motion

• orbital motion

• real motion

• rotational motion

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Who first proposed the heliocentric model of the solar system?

• Newton

• Kepler

• Copernicus

• Galileo

The four inner planets of our solar system are

• gas giant planets.

• interplanetary asteroids.

• terrestrial planets.

• meteorites.