Understanding the Expanding Universe

What is the Big Bang?

• A type of galaxy

• A massive explosion that created the universe

• A star formation process

• A theory about the end of the universe

How does the speed of galaxies relate to their distance from us?

• Closer galaxies move faster

• Farther galaxies move slower

• All galaxies move at the same speed

• Farther galaxies move faster

What does the rubber sheet analogy explain?

• The speed of light

• The expansion of the universe

• The shape of galaxies

• The formation of stars

What is the cosmic event horizon?

• The start of the universe

• The boundary of a black hole

• The edge of the solar system

• The limit beyond which galaxies are unreachable

What mysterious force is believed to cause the universe's accelerating expansion?

• Dark matter

• Electromagnetism

• Gravity

• Dark energy

What will happen to galaxies in the future due to the universe's expansion?

• They will collide with each other

• They will become invisible

• They will stop moving

• They will shrink in size

Why should we build telescopes now according to the video?

• To measure the Earth's rotation

• To study the ocean

• To capture images of the sun

• To observe galaxies before they become unreachable

What is one theory about the space beyond the observable universe?

• It is filled with black holes

• It is similar to our cosmic neighborhood

• It is completely empty

• It is a mirror image of our universe

What is the observable universe?

• A galaxy cluster

• The part of the universe we can see

• The entire universe

• A type of star

What might we find if we go far enough beyond the observable universe?

• Nothing but empty space

• A giant black hole

• A universe similar to ours

• A completely different universe