Big Bang

The video explains the development of the universe, starting from a tiny point of high temperature and density. This point underwent rapid expansion and cooling approximately 14 billion years ago, known as the Big Bang. Evidence indicates that the universe continues to expand and cool today.

What was the initial condition of all matter and energy in the universe?

• Non-existent

• Scattered in multiple locations

• Contained in a tiny point

• Spread out evenly across space

Approximately how many years ago did the universe begin its rapid expansion?

• 10 billion years ago

• 5 billion years ago

• 20 billion years ago

• 14 billion years ago

What process did the universe undergo after its initial state?

• Gradual contraction

• Sudden explosion

• Rapid expansion and cooling

• Steady heating

What evidence do we have about the current state of the universe?

• It is shrinking and heating

• It is static and unchanging

• It is expanding and cooling

• It is collapsing into a singularity

What is the current trend of the universe's temperature?

• Remaining constant

• Decreasing gradually

• Increasing rapidly

• Fluctuating unpredictably