Time Travel and Physics Quiz

What was unique about Stephen Hawking's party in 2009?

• Only time travelers were invited.

• It was held underwater.

• It was held in a spaceship.

• It was a surprise party for Einstein.

According to Einstein, how should we perceive the universe?

• As a static, unchanging entity.

• As a four-dimensional spacetime.

• As a three-dimensional space that changes over time.

• As a two-dimensional plane.

What happens to time as you move faster through space?

• Time reverses.

• Time remains constant.

• Time speeds up.

• Time slows down.

What was the main purpose of Scott Kelly's mission to the International Space Station?

• To repair the Hubble Space Telescope.

• To study the effects of space flight on the human body.

• To test new space suits.

• To search for extraterrestrial life.

How did Scott Kelly's speed in space affect his aging compared to his twin brother?

• He aged faster.

• He did not age at all.

• He aged slower.

• He aged at the same rate.

What speed would Scott Kelly need to achieve to let Earth age a thousand years while he orbits for one year?

• The speed of light.

• 17,000 mph.

• The speed of sound.

• 25,000 mph.

Why is achieving the speed of light considered impossible for a spacecraft?

• It would be too hot.

• It would be too cold.

• It would take too long.

• It would require infinite energy.

What is the fastest human-piloted vehicle in history?

• Voyager 1

• Apollo 10

• Hubble Space Telescope

• Space Shuttle Atlantis

How does gravity affect time according to the video?

• It speeds up time.

• It has no effect on time.

• It slows down time.

• It reverses time.

What analogy is used to describe spacetime in relation to gravity?

• A rubber sheet.

• A wooden plank.

• A glass of water.

• A metal rod.