Black Holes Reading Check

What is a black hole?

• An unexplained phenomenon.

• A star that has collapsed.

• A wormhole to another dimension.

• A planet that has extremely high gravity.

The area around an object where it can exert gravitational force on other objects is called a...

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Which object would have the largest gravitational field?

• The moon

• Earth

• The Sun

• Jupiter

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Why do astronauts on the Moon seem like they’re “walking on springs,” while on Earth, we are firmly attached to the ground?

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The gravitational force between two objects is stronger when the objects are...

• Closer together

• Further apart

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How would a black hole pull in things like a spaceship? (What force would be acting on the spaceship?)

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Why does a black hole produce such a strong gravitational force?

• No one knows

• It is really close to a big star

• It has a lot of mass

• It's so big

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Why are black holes black?