What theory suggests that the universe originated from a dense state or singularity and has been expanding over time?

• Steady State Theory

• Big Bang Theory

• String Theory

• Big Crunch Theory

Tags

NGSS.HS-ESS1-2

The change in wavelength that allows us to determine if an object if moving toward us?

• Whiteshift

• Redshift

• Blueshift

• Blackshift

Tags

NGSS.HS-PS4-3

Galaxies that are redshifted are:

• actually blue.
• really far away.
• invisible.
• moving away from us.

Tags

NGSS.HS-ESS1-2

The universe is expanding!  This means that:

• all of the galaxies are spreading out.
• the universe must have started from a single point.
• the universe is cooling down.
• all of the above.

Tags

NGSS.HS-ESS1-2

The Cosmic Microwave Background Radiation is:

• the remaining energy from the big bang.

• incredibly hot.

• visible to the human eye.

• only located in certain places in the universe.

Tags

NGSS.HS-ESS1-2

Light waves that are stretched out by objects moving apart:

• have a shorter wavelength.
• travel faster than the speed of light.
• are invisible.
• appear more red.

Tags

NGSS.HS-PS4-1

The universe is ____________ years old.

• 8.13 billion
• 13.7 billion

• 1.83 billion
• 381 million

Tags

NGSS.HS-ESS1-2

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

Tags

NGSS.HS-ESS1-2

An infinitely small, infinitely dense, and infinitely hot point that is believed to have existed before the big bang.

• Singularity

• Antimatter

• Little bang

• condensation nuclei

Tags

NGSS.HS-ESS1-2

Samuel, Abigail, and Luna are studying astronomy and they learned about the motion of galaxies. Which statement is true according to their studies?

• The galaxies are moving toward them

• The galaxies are moving away from them

• The universe remains static or unchanged in motion for them

• None of the above

Tags

NGSS.HS-ESS1-2