Astronomy Week 12 Quiz

What is the definition of 'mergers'?

• The act of two or more objects striking each other with force

• The combining of two or more entities into one

• A system of stars, gas, and dust held together by gravity

• Having the shape of an ellipse; oval-shaped.

What does 'elliptical' mean?

• Having the shape of an ellipse; oval-shaped

• The act of two or more objects striking each other with force

• A system of stars, gas, and dust held together by gravity

• Relating to the gradual development and change over time.

Fill in the blank: Elliptical galaxies are often characterized by their smooth and ______ appearance.

• rough

• featureless

• colorful

• chaotic

What can giant clouds of gas in merging galaxies create?

• Black holes

• Shock waves

• Spiral arms

• Star clusters

Tags

NGSS.MS-ESS1-2

Star clusters can be absorbed into larger galaxies during mergers. True or False?

• True

• False

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

According to the text, what do collisions and mergers of galaxies provide important clues about?

Tags

NGSS.HS-ESS1-2

How do supermassive black holes influence galaxy mergers?

• They prevent galaxies from merging

• They slow down the merging process

• They drive the dynamics of the merger

• They have no impact on galaxy mergers.

Tags

NGSS.MS-ESS1-2

Fill in the blank: The transformation of spiral galaxies into lenticular galaxies is often due to _______.

• Star formation

• Galactic collisions

• Cosmic radiation

• Black hole activity

Which of the following is NOT found in a galaxy?

• A) Stars

• B) Gas

• C) Dust

• D) Oceans

Which type of galaxy looks smooth without clear features?

• Spiral Galaxies

• Elliptical Galaxies

• Both A and B

• Neither A nor B