Geoscience 1st semester final 2020

Front

What is escape velocity?

Back

The speed you need to go to leave a moon, planet, or star.

Front

What does it mean if some galaxies are red shifted and some are blue shifted?

Back

Some galaxies are moving toward us and some are moving away.

Front

What is a nebula?

Back

A cloud of gas and dust, similar in consistency to smoke.

Front

What are the inner 4 planets classified as?

Back

Terrestrial.

Front

How do we know how solar systems form?

Back

We can see different stages of solar system development when we look around the universe.

Front

What is the Local Group in astronomy?

Back

A cluster of galaxies that includes our Milky Way.

Front

What are jovian planets?

Back

Gas giants that are far from the sun, like Jupiter and Saturn.

Front

What is the difference between terrestrial and jovian planets?

Back

Terrestrial planets are rocky, while jovian planets are gas giants.

Front

What is redshift in astronomy?

Back

A phenomenon where light from an object is shifted to longer wavelengths, indicating it is moving away.

Front

What is blueshift in astronomy?

Back

A phenomenon where light from an object is shifted to shorter wavelengths, indicating it is moving toward us.