Universe & Galaxies Vocabulary Review

The explosion that sent the universe flying out is called _____.

• The Big Bang

• The Milky Way

• The Solar System

• The Sun

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

As galaxies move away from our galaxy

a shift on the electromagnetic spectrum

(EMS) is noticed. This phenomena is

called _____________.

• redshift

• blueshift

• unshift

• blackshift

A collection of hundreds of stars around a common centre is called a:

• Solar System

• Galaxy

• Light year

• Andromeda

The name of the galaxy in which our solar system is situated is the:

• Andromeda

• Milky Way

• Black eye

• Sombrero

What type of galaxy is the Milky Way galaxy?

• Irregular

• Elliptical

• Spiral

• None of these

The distance that light travels in one year is called:

• A light year

• A light ray

• An astronomical unit

• AU

The theory that the universe originated from a gigantic explosion of a central large and dense mass is the:

• Organic Evolution Theory

• Steady State Theory

• Big Bang Theory

• Theory of tectonic plates

A galaxy which is either spherical (ball like) or a flattened disk is a ___ galaxy.

• elliptical

• humanoid

• irregular

• spiral

A galaxy which has a nucleus of bright stars and two or more arms in circular formation is called a ___ galaxy.

• elliptical

• humanoid

• irregular

• spiral