QUIZ 8

How old is the universe approximately?

• 4.5 billion years

• 7.2 billion years

• 13.8 billion years

• 20.5 billion years

What method do astronomers use to measure distances within our solar system?

• RADAR

• PARALLAX

• CEPHEIDS

• SUPERNOVAE

What was the result of Vesto Slipher's discovery in 1912?

• Galaxies exhibit motion.

• Galaxies rotate.

• Galaxies move relative to each other.

• All galaxies are receding.

What phenomenon is used in astronomy to measure the speed at which stars and galaxies are approaching or receding from us?

• Redshift

• Blueshift

• Doppler Effect

• Hubble’s Law

Which concept suggests that the universe will expand forever with all star formation stopping and black holes evaporating?

• Closed Universe

• Open Universe

• Static Universe

• Singularity Universe

Which method is employed for measuring the distance of galaxies farther than Andromeda?

• SUPERNOVAE

• REDSHIFT

• HUBBLE’S LAW

• CEPHEIDS

What is the ultimate conclusion of entropy in an Open Universe scenario?

• Big Crunch

• Heat Death of the Universe

• Static Universe

• Singularity Collapse

What is used to measure the distance of our galaxy to a nearby galaxy like Andromeda?

• CEPHEIDS

• SUPERNOVAE

• REDSHIFT

• HUBBLE’S LAW

How do astronomers measure distances to nearby stars like Proxima Centauri?

• RADAR

• PARALLAX

• CEPHEIDS

• REDSHIFT

How did Edwin Hubble contribute to recognizing the expanding universe?

• He discovered galaxies rotate.

• He concluded all galaxies are moving towards the Milky Way.

• He detected an expansion of space between galaxies.

• He studied the oldest objects within the universe.