Group-2_Theories of our origin

What is the Cosmic Microwave Background (CMB)?

• Process of forming the hydrogen and helium

• The unknown form of energy

• The cooled remnant of the first light

• The result of galaxies moving away from us

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NGSS.HS-ESS1-2

What did Edwin Hubble discover in 1929?

• The universe is expanding

• The universe has no beginning and no end

• The universe goes through periods of expansion and contraction

• The universe began as a single point

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NGSS.HS-ESS1-2

What makes up 98% of the visible matter in the universe?

• Dark matter and dark energy

• New universes constantly forming

• Hydrogen and helium

• Invisible substances

What is the steady state theory proposed by Fred Hoyle, Herman Bondi, and Thomas Gold?

• The universe began as a single point

• The universe goes through periods of expansion and contraction

• The universe has no beginning and no end

• The universe is expanding

What does the multiverse theory suggest?

• The universe began as a single point

• Our universe is just one of many universes that exist

• The universe is expanding

• The universe goes through periods of expansion and contraction

What concept does the Oscillating Universe Theory challenge?

• Conservation of energy

• Conservation of mass

• Entropy

• Conservation of momentum

What observation directly contradicts the Steady State Theory?

• Expansion of galaxies

• Formation of black holes

• Redshift of distant galaxies

• Cosmic Microwave Background Radiation

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NGSS.HS-ESS1-2

According to Hubble's law, what relationship exists between a galaxy's distance from Earth and its apparent velocity?

• The closer a galaxy, the faster it appears to be moving away

• The more distant a galaxy, the faster it appears to be moving away

• The further a galaxy, the slower it appears to be moving away

• The velocity of galaxies is unrelated to their distance from Earth

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NGSS.HS-ESS1-2

According to the Steady State Theory, what maintains the universe's constant density?

• Expansion of the universe
• Big Bang Theory
• Continuous creation of matter
• Dark matter

What process is responsible for the formation of hydrogen and helium in the early universe?

• Volcanic eruption
• Photosynthesis
• Chemical reaction
• Big Bang nucleosynthesis

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NGSS.HS-ESS1-2