Review: Universe, Galaxies, Light Years, Big Bang

Front

What is the hottest type of star?

Back

Blue Star

Front

What is the term for the shift in the electromagnetic spectrum when galaxies move away from us?

Back

Redshift

Tags

NGSS.HS-ESS1-2

Front

Which spectral class does our sun belong to?

Back

G

Front

How does Cosmic Microwave Background Radiation support the Big Bang Theory?

Back

Microwaves are found everywhere in the universe.

Tags

NGSS.HS-ESS1-2

Front

What does reversing galaxy motion imply about the universe's past?

Back

Everything must have been condensed into one extremely dense point.

Tags

NGSS.HS-ESS1-2

Front

What is a galaxy?

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Tags

NGSS.MS-ESS1-2

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation about how the universe began, stating that it started from a singular point and has been expanding ever since.

Tags

NGSS.HS-ESS1-2

Front

What is a light year?

Back

A light year is the distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers).

Front

What are the main types of galaxies?

Back

The main types of galaxies are spiral, elliptical, and irregular.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4