Big Bang Theory & EMS & Galaxies review

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, stating that it began as a singularity approximately 13.8 billion years ago and has been expanding ever since.

Tags

NGSS.HS-ESS1-2

Front

What is the Cosmic Microwave Background (CMB)?

Back

The Cosmic Microwave Background (CMB) is the afterglow radiation from the Big Bang, filling the universe and providing evidence for the Big Bang Theory.

Tags

NGSS.HS-ESS1-2

Front

What does redshift indicate in astronomy?

Back

Redshift indicates that an object in space, such as a galaxy, is moving away from us, which suggests that the universe is expanding.

Tags

NGSS.HS-ESS1-2

Front

What are the main types of electromagnetic radiation?

Back

The main types of electromagnetic radiation include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Tags

NGSS.HS-PS4-4

Front

How is the electromagnetic spectrum organized?

Back

The electromagnetic spectrum is organized from radio waves to gamma rays in order of decreasing wavelength.

Front

What shape is the Milky Way galaxy?

Back

The Milky Way galaxy is a spiral galaxy.

Front

How old is the Milky Way Galaxy?

Back

The Milky Way Galaxy is approximately 13.0 billion years old.

Front

What type of galaxy is characterized by a smooth, featureless light profile?

Back

An elliptical galaxy is characterized by a smooth, featureless light profile.

Front

What is the significance of the abundance of elements in the universe?

Back

The abundance of elements, such as hydrogen and helium, provides insights into the processes of nucleosynthesis that occurred during the Big Bang.

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Front

What is the difference between a spiral galaxy and an elliptical galaxy?

Back

A spiral galaxy has a flat, rotating disk with arms, while an elliptical galaxy has a more rounded, featureless shape.