The Universe and Big Bang

What was contained in the singularity that gave rise to the Big Bang? Choose the best answer.

• a. Gamma rays

• b. Electrons in a highly excited state

• c. One atom of every known element in our universe

• d. All the mass, energy, and time in our universe

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What do the initial moments after the Big Bang have in common with the universe as it exists now?

• a. All the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang.

  
  

• b. The universe back then could not sustain life, and it cannot sustain life now.

• c. The universe was extremely hot then, and it is still extremely hot now.

• d. The universe began expanding then, and it is still expanding today.

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According to the Big Bang theory, how old is the universe?

• a. 6,000 years

• b. 65 million years

• c. 4.5 billion years

• d. 14.5 billion years

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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.

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What is the name of the most widely accepted scientific theory of how the Universe formed?

• Steady State

• Big Bang

• Heliocentric

• Geocentric

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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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The Big Bang Theory is the most widely accepted theory about the origin of the universe.

• true

• false

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Which event occurred more than 10 billion years ago? 

• (1) Big Bang 

   

• (2) origin of life on Earth 

• (3) Pangaea begins to break up

• (4) origin of Earth and its Moon

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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 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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