The Big Bang - Universe’s Beginning

The video explains the Big Bang Theory, which posits that the universe began from a hot, dense point and expanded. Initially, particles formed, leading to atoms, stars, and galaxies. The Milky Way formed about 1 billion years later, and Earth formed 8 billion years after that. The universe continues to expand, but the cause of the Big Bang remains unknown.

What does the Big Bang Theory propose about the origin of the universe?

• The universe has always existed in its current form.

• The universe was formed by the merging of black holes.

• The universe started from a single hot and dense point.

• The universe was created by a collision of galaxies.

What happened less than a second after the Big Bang?

• The universe formed stars immediately.

• The universe became hotter.

• The universe stopped expanding.

• The universe cooled enough for particles to form.

Approximately how long after the Big Bang did atoms begin to form?

• 1 billion years

• 10,000 years

• 380,000 years

• 1 million years

How long did it take for the Milky Way Galaxy to form after the Big Bang?

• 5 billion years

• 1 billion years

• 10 billion years

• 13.8 billion years

What remains a mystery about the Big Bang?

• The speed at which galaxies formed.

• The reason why the universe stopped expanding.

• The cause of the Big Bang itself.

• The exact temperature of the universe at its birth.