1.2 The Big Bang Theory Review

What is the most accepted theory for the formation of the universe?

• Big Bang Theory

• Plasma Cosmology

• Pulsating Universe Theory

• Steady State Theory

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How long ago did the universe begin according to the Big Bang Theory?

• 4.6 billion years

• 1 billion years

• 13.8 billion years

• 10 billion years

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What was the universe like in the first second of its existence?

• Filled with galaxies

• Hot and dense

• Stable and solid

• Cool and spacious

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Which element was the first to form in the universe?

• Oxygen

• Carbon

• Hydrogen

• Helium

What process allows stars to create energy?

• Magnetic induction

• Nuclear fusion

• Photosynthesis

• Chemical reaction

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How do scientists determine the composition of stars?

• By their size

• By their distance from Earth

• By their emission spectra

• By their temperature

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What is the cosmic microwave background (CMB)?

• Heat from Earth's core

• Light from distant galaxies

• Radiation from the Sun

• Earliest energy emitted by matter in the universe

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What does redshift indicate about a star's motion?

• It is rotating

• It is moving away from us

• It is stationary

• It is moving towards us

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The first elements created after the Big Bang were...

• Hydrogen, Helium

• Hydrogen, Oxygen

• Helium, Oxygen

• Oxygen, Nitrogen

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Which of the following is evidence for the Big Bang Theory?

• the planets orbit the sun

• the universe is expanding

• Earth's surface is 71% water

• the universe is shrinking

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