Big Bang

Why is the abundance of H/He throughout galaxies an important piece of evidence supporting the Big Bang?

• H/He were two of the first elements to form following the Big Bang.

• H/He are highly reactive generating hot spots.

• H/He are high mass elements formed from supernovae.

• All the above

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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

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What does the Big Bang theory suggest?

• The universe was just there

• The Milky Way is the only solar system

• The universe is continually expanding

• The universe is collapsing in toward a single point

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The "afterglow" of the energy from the origin of the universe that we see today.

• Cosmic microwave radiation

• sunlight

• Doppler effect

• Cosmic explosions

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When did the big bang occur?

• 5000 yrs ag0

• 13.7 billion yrs ago

• 2 million yrs ago

• Unknown

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Which of the following is the best description of the Big Bang Theory?

• The Big Bang Theory is the prevailing model about the universe’s origin and is supported by observations of the universe’s expansion.

• The Big Bang Theory is just one of the ideas about the universe’s origin, many of which are equally respected by the scientific community.

• The Big Bang Theory states that pre-existing matter was compacted into a hot and dense form and suddenly exploded into infinite, empty space.

• The Big Bang Theory is the scientific explanation of how the Sun, Earth, and the rest of the Solar System were formed at the beginning of time.

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Which of the following theories states that the universe began as a single point and has been expanding ever since?

• The Big Bang Theory

• Simultaneous formation theory

• Impact Theory

• Collision Theory

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According to the big bang theory, the universe was formed about ​ ​ (a)  

• 14 billion years ago

• 4.7 billion years ago

• 700 billion years ago

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According to the Big Bang theory, how was the universe before the Big Bang?

• Cold and spread out

• Very hot and dense

• Completely empty

• Infinite in size

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Which description is considered most accurate regarding what actually happened during the Big Bang?

• Two galaxies collided causing an immense explosion as stars crashed into one another

• All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

• All matter emerged from a massive black hole at the center of the universe.

• Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

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