Stars and Galaxies

What is the theory that states the universe began with a huge explosion?

• Apparent Magnitude
• Light year
• Big Bang Theory
• Galaxy

Tags

NGSS.HS-ESS1-2

Our galaxy is called

• The Earth Nebula

• The Hubble Galaxy

• The Milky Way

• The Andromeda

Galaxies are composed of (best answer)

• stars
• stars and gas
• stars, dust, and gas
• stars, dust, and gas held together by gravity

Is created when gravity pulls some of the gas and dust in a nebula together.

• Protostar

• Neutron star

• Supernova

• Galaxy

An object that orbits a star

What is our closest neighbouring galaxy called?

Tick which of these are other theories of the origin of the universe

• Unilateral Spinning System

• Eternal Inflation

• Steady State

• Inflating inflation

• Oscillating Universe Theory

What is the effect we hear when an ambulance passes?

What unit do astrophysicists prefer to use?

• Km

• m/s²

• dark year

• Light year