6.E.1 NCFE Review: Astronomy

As planets revolve around distant stars, they block some of the light from reaching the Kepler space telescope. The telescope measures changes in the brightness of stars as planets move in front of them. How has the Kepler telescope improved our understanding of the universe?

• It has aided in the discovery of planets outside the solar system.

• It has aided in the discovery of planets inside the solar system.

• It has aided in the discovery of life outside the solar system.

• It has aided in the discovery of life inside the solar system.

What causes the summer to be the warmest season?

• The Earth’s tilt causes the shortest days with the most intense sunlight.

• The Earth’s tilt causes the longest days with the most intense sunlight.

• The Earth’s tilt causes the longest days with the least intense sunlight.

• The Earth’s tilt causes the shortest days with the least intense sunlight.

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What effect does this arrangement have on the tidal range?

• The tide is larger than normal because the gravitational forces of the sun and moon pull in the same direction.

• The tide is larger than normal because the gravitational forces of the sun and moon pull in opposite directions.

• The tide is smaller than normal because the gravitational forces of the sun and moon pull in the same direction.

• The tide is smaller than normal because the gravitational forces of the sun and moon pull in opposite directions.

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Why are greenhouse gases important for sustaining life on Earth?

• They keep the air clean.

• They help keep Earth warm.

• They help keep water moving on Earth.

• They keep the wind from blowing too strongly.

Which force keeps the planets in orbit around the sun?

• gravitational force

• electrical force

• magnetic force

• wind force

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Which best explains how Earth and the sun cause the seasons?

• Earth’s continuous rotation on its axis creates the seasons.

• The sun’s gravitational pull upon Earth creates the seasons.

• The sun’s tilt as Earth rotates around it creates the seasons.

• Earth’s tilt and revolution around the sun create the seasons.

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Which describes the revolution of the moon, Earth, and the sun?

• The moon and the sun revolve around Earth.

• The sun revolves around Earth; both the sun and Earth revolve around the moon.

• The moon revolves around Earth; both the moon and Earth revolve around the sun.

• Earth revolves around the moon; both Earth and the moon revolve around the sun.

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What would most likely happen to Earth if it were not tilted on its axis?

• Most of Earth would experience winter all year long.

• Most of Earth would experience summer all year long.

• Most of Earth would still experience the change in seasons.

• Most of Earth’s temperatures would be constant everywhere.

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Which best explains why the Northern Hemisphere’s temperature is cooler in winter and warmer in summer?

• The sun causes more evaporation in summer and less in winter.

• The sun is lower in the sky in summer and higher in the sky in winter.

• Earth is closer to the sun during summer and farther away during winter.

• Earth is tilted on its axis causing some areas to receive more direct sunlight during summer and less during winter.

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Which is most likely the cause of tides on Earth?

• gravity

• magnetism

• solar storms

• asteroid belt

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