Astronomy Review

According to the Big Bang theory, how was the universe formed?

• Through the collision of multiple galaxies.

• From the gradual accumulation of matter in space.

• When a tiny, dense particle exploded and expanded

• By the combination of multiple black holes.

Which of the following is NOT a claim of the Big Bang Theory?

• The early universe was hot and dense.

• The universe expanded from a single point.

• Objects in the universe formed in a specific order.

• The universe has stopped expanding.

Which of the following is evidence supporting the Big Bang theory?

• Even distribution of stars in the universe.

• Random distribution of galaxies.

• Even distribution of CMBR (Cosmic Microwave Background Radiation).

• Absence of hydrogen and helium.

What is the significance of the redshift of galaxies in the context of the Big Bang theory?

• It indicates the galaxies are moving closer to each other.

• It indicates the galaxies are moving away from each other.

• It shows the galaxies are stationary.

• It shows the galaxies are rotating.

What is the name of the theory that scientists believe describes how the Earth and other planets formed?

• Big Bang Theory

• Theory of Planetary Motion

• Solar Nebular Condensation Theory

• Theory of Relativity

According to the Solar Nebular Condensation Theory, what force caused the gas and dust in the nebula to condense?

• Electromagnetism

• Strong Nuclear Force

• Gravity

What objects combine to form planetesimals?

• Stars

• Planets

• Gas and dust particles

• Black holes

What object can form from leftover planetesimals?

• Protoplanets

• Stars

• Black Holes

• Moons

Where do all stars form?

• Planetesimals

• Nebula

• Protoplanets

• Black holes

In what stage do stars begin to shine?

• Main Sequence

• Red Giant

• Protostar

• White Dwarf