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Astronomy

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Michelle Littel

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Cards in this guide (13)
Why do the planets rotate around the sun

Because they all condensed out of the same cloud of spinning dust and gas.

Which planet do most known extrasolar planets most resemble

Jupiter Neptune

The planet that most extrasolar planets resembles Jupiter.

Jupiter(apex)
Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.

Which is the first step in building a solar system from a solar nebula

An explosion disturbs the gas and dust in the nebula.

What were the heavier elements in the universe formed by

They were formed in supernovae.

What object is so dense that even light can not escape its gravity

That is called a "black hole".

Which has not actually been seen by astronomers the Main asteroid belt the Oort cloud or the Kuiper belt

The Oort cloud

What is an old dense hot star

White dwarf

Why do astronomers find it difficult to locate extrasolar planets with telescopes-

Light from the stars they orbit makes it difficult to see them.

How do hydrogen bombs and stars both produce nuclear energy

Stars like our sun and hydrogen bombs produce energy through nuclear fusion.

Select the star life cycle that is accurate.

star of one stellar mass, red giant, planetary nebula, white dwarf

Do All of the following are reasons why astronomers have difficulty looking at distant stars except

They don't understand how redshift affects stars.

What two things balance to maintain the shape of a star

Pressure and gravity

Which best describes the big bang theory

Matter was compressed into a single point and then exploded outward to form the universe - APEX

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