Big Bang Quiz: questions and answers

1. According to the Big Bang theory, the universe has expanded from ______

a very high-density and low-temperature state

a very high-density and high-temperature state

a very low-density and high-temperature state

2. How long ago has the Big Bang happen?

13.799 ± 0.021 billion years

11.799 ± 0.021 billion years

15.799 ± 0.021 billion years

3. Who was the first to note that an expanding universe could be traced back in time to an originating single point?

Georges Lemaître

Aristotle

Arthur Eddington

4. What were the majority of atoms produced by the Big Bang?

Oxygen, along with cianide and traces of silicon

Hydrogen, along with helium and traces of lithium

Oxygen, along with helium and traces of lithium

5. Who formulated the governing equations of the Big Bang theory?

Albert Einstein

Edwin Hubble

Alexander Friedmann

6. What is a gravitational singularity?

A location in spacetime where the gravitational field of a celestial body becomes infinite in a way that depends on the coordinate system

A location in spacetime where the gravitational field of a celestial body becomes finite in a way that does not depend on the coordinate system

A location in spacetime where the gravitational field of a celestial body becomes infinite in a way that does not depend on the coordinate system

7. How many types of quarks are there?

4

6

5

8. What percentage of the total energy density is present in the form of dark energy?

73%

37%

63%

9. What does WMAP stand for?

Watkins Microwave Anisotropy Probe

Williamson Microwave Anisotropy Probe

Wilkinson Microwave Anisotropy Probe

10. When did Arno Penzias and Robert Wilson discover the cosmic background radiation?

1954

1974

1964

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