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Cosmic inflation Trivia Questions

How much do you really know about Cosmic inflation? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

Inflation was first proposed by Alan Guth in 1980 to explain why the universe is so flat.

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Easy
✓ TRUE

Guth introduced inflation in 1980, addressing the flatness, horizon, and monopole problems in Big Bang cosmology.

2.

Inflation smoothed out the universe, making it look the same in all directions.

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Easy
✓ TRUE

Inflation stretched tiny quantum fluctuations to cosmic scales, explaining the uniform temperature of the CMB across the sky.

3.

Cosmic inflation occurred after the Big Bang, not at the very beginning.

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Medium
✓ TRUE

Inflation is thought to have happened a tiny fraction of a second after the Big Bang, solving problems like the horizon problem.

4.

Cosmic inflation suggests the universe came from a single, infinitely dense point called a singularity.

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Medium
✗ FALSE

That describes the Big Bang singularity, not inflation. Inflation occurred after the singularity, smoothing out the universe.

5.

Inflation theory predicts the universe expanded faster than light for a brief period.

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Medium
✓ TRUE

Inflation involved superluminal expansion of space itself, which doesn't violate relativity since space can expand faster than light.

6.

The cosmic microwave background radiation was directly caused by inflation.

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Medium
✗ FALSE

The CMB is from recombination 380,000 years after the Big Bang. Inflation only set the initial conditions for it.

7.

The first direct evidence for inflation came from detecting primordial gravitational waves in 2014.

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Hard
✗ FALSE

BICEP2 announced that in 2014, but it was later attributed to galactic dust, not primordial gravitational waves.

8.

Inflation theory implies that our universe is just one of many in a multiverse.

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Hard
✓ TRUE

Many inflation models, like eternal inflation, predict a multiverse where different regions inflate and form separate bubble universes.

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