The Big Bang Theory and Universe Formation MCQs

1. What does the Big Bang Theory explain?
(A) The structure of atoms
(B) The formation of galaxies only
(C) The origin and expansion of the universe
(D) The movement of planets

2. Approximately how old is the universe, according to the Big Bang Theory?
(A) 4.5 million years
(B) 13.8 billion years
(C) 100 billion years
(D) 500 million years

3. What is believed to have existed before the Big Bang?
(A) Stars and galaxies
(B) Matter and time
(C) A singularity – a point of infinite density
(D) A black hole

4. What is cosmic microwave background radiation (CMB)?
(A) Radiation from the Sun
(B) Heat from volcanic eruptions
(C) Faint radiation left over from the Big Bang
(D) UV radiation from stars

5. Who proposed the idea of an expanding universe based on redshift observations?
(A) Isaac Newton
(B) Albert Einstein
(C) Edwin Hubble
(D) Stephen Hawking

6. What does redshift in light from galaxies indicate?
(A) Galaxies are moving closer
(B) Galaxies are stationary
(C) Galaxies are moving away
(D) Galaxies are disappearing

7. Which element was formed in the first few minutes after the Big Bang?
(A) Iron
(B) Uranium
(C) Hydrogen
(D) Oxygen

8. What is meant by the “expanding universe”?
(A) The Earth is increasing in size
(B) Space itself is stretching, increasing distance between galaxies
(C) Stars are growing larger
(D) Gravity is decreasing

9. What tool is used to observe the early universe and the Big Bang’s effects?
(A) Microscope
(B) Telescope
(C) Radio
(D) Spectrometer

10. Which theory is the most widely accepted explanation of the universe’s origin?
(A) Steady State Theory
(B) Oscillating Universe Theory
(C) Big Bang Theory
(D) Multiverse Theory