Question

1. which of the following describes the colliding of two or more galaxies?

○ galactic collision
○ elastic collision
○ barred-spiral collision
○ planetary collision

Explanation:

• Galactic collision: Defined as the collision of two or more galaxies.
• Elastic collision: Involves objects (like particles) where kinetic energy is conserved, not related to galaxies.
• Barred - spiral collision: “Barred - spiral” refers to a type of galaxy (barred - spiral galaxy), and this term is not used to describe galaxy collisions.
• Planetary collision: Involves planets, not galaxies.

Answer:

A. galactic collision