Science Multiple Choice Review

In which direction does Earth’s gravity pull?

• toward the sun

• toward Earth’s center

• toward the North Pole

• toward the tallest mountain

The force of gravity between two objects increases as they are

• spread apart

• moved closer together

• cooled

• heated

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The sun’s gravity is _________ Earth’s because the sun is _________ than Earth.

• stronger than; smaller

• weaker than; bigger

• stronger than; bigger

• weaker than; smaller

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The moon’s gravity is weaker than Earth’s. If you went to the moon, you would

• shrink and become shorter.

• weigh less than you do on Earth.

• float off into space.

• not jump as high as you do on Earth.

The intense ______ at the core of a star causes it to produce light.

• sound

• heat

• cold

• gravity

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Why does only a small part of a star’s light reach Earth?

• The sun absorbs most of the light.

• The atmosphere blocks most of the light.

• The light is destroyed by the darkness of space.

• The light spreads out as it moves through space.

Distances in space are so great, they are often measured in _________.

• meters

• light-years

• feet per second

• centimeters

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The sun has the highest apparent brightness to Earth because it

• is closer to Earth than any other star.

• is larger than any other star.

• produces more light than other stars

• is hotter than other stars.

The moon appears to glow because

• it is lit up by light from Earth.

• its core burns gases to produce light.

• it reflects the sun’s light that shines on it.

• its surface has substances that glow in the dark.

Tags

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The moon rises and sets due to

• tidal currents.

• large wind gusts.

• Earth’s rotation

• the sun’s rotation.

Tags

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