Cosmology Review

Which of the following ideas make up the Big Bang Theory?

• The Universe is currently expanding.

• The Universe was once hot and dense.

• The Universe has a finite size.

• The Universe is unbounded.

Tags

NGSS.HS-ESS1-2

According to the big bang theory, the universe began as an explosion and is still expanding. This theory is supported by observations that the stellar spectra of distant galaxies show a

• concentration in the yellow portion of the spectrum

• concentration in the green portion of the spectrum

• shift toward the blue end of the spectrum

• shift toward the red end of the spectrum

Tags

NGSS.HS-ESS1-2

Cosmic Background Radiation is...

• Alpha Particles from the nearest black hole

• The light from our sun

• The leftover energy from the formation of our sun

• The leftover energy from the Big Bang

Tags

NGSS.HS-ESS1-2

Olber's Paradox states that if the universe is infinite in size and infinite in age, then...

• The universe must be expanding

• The night sky should be full of light

• The universe must be contracting

• Aliens must exist

How old do we estimate the universe to be?

• 13.8 billion years old

• 25 million years old

• 13.8 million years old

• 8 billion years old

Tags

NGSS.HS-ESS1-2

Which of these is NOT evidence of the Big Bang?

• Red shift of the light from distant galaxies

• CMBR

• Doppler effect

• Primordial elements

Tags

NGSS.HS-ESS1-2

When we make a "budget of stuff" in the cosmos, what percentage is made of stuff we can't directly see?

• 5%

• 27%

• 68%

• 95%

Tags

NGSS.HS-ESS1-2

Extremely distant galaxies are moving away from us at ___

• half the speed of light

• almost the speed of light

• the speed of light

• speeds faster than light

Tags

NGSS.HS-ESS1-2

In ____shift, the galaxies appear _____ in color b/c they are moving away from us.

• blue; red
• red; red
• red; blue
• blue; blue

Tags

NGSS.HS-PS4-3

Is Galaxy A moving

• Away

• Towards

• Stationary

Tags

NGSS.HS-ESS1-2