8.8D Origins of the Universe

Front

What is the most popular theory regarding the origin of the universe?

Back

The Big Bang Theory.

Tags

NGSS.HS-ESS1-2

Front

Approximately how long ago did the universe originate according to the Big Bang Theory?

Back

10 – 20 billion years ago.

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Front

What key observation supports the Big Bang Theory regarding the movement of galaxies?

Back

All galaxies appear to be moving away from all other galaxies.

Tags

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Front

What were the original two elements formed in the universe?

Back

Helium and Hydrogen.

Front

What does the redshift of light from stars indicate?

Back

That the stars are moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What is Cosmic Microwave Background Radiation (CMBR)?

Back

The residual microwave radiation observed everywhere in the universe.

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Front

Why is CMBR considered evidence for the Big Bang Theory?

Back

It is believed to be radiation left over from the rapid expansion of matter.

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Front

What does the term 'redshift' refer to in the context of astronomy?

Back

The phenomenon where light from an object is shifted to longer wavelengths as it moves away.

Tags

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NGSS.HS-PS4-3

Front

How does the Big Bang Theory explain the distribution of elements in the universe?

Back

It suggests that the universe began with a hot, dense state that cooled and allowed for the formation of simple elements.

Tags

NGSS.HS-ESS1-2

Front

What is the significance of the observation that all galaxies are moving away from each other?

Back

It supports the idea that the universe is expanding, a key concept of the Big Bang Theory.

Tags

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