Origins of the Universe

The galaxy of which the sun and the solar system are a part of

• Milky Way

• Andromeda Galaxy

• Heliocentric

• Galaxy

The collection of 8 planets and their moons in orbit around the sun together with smaller bodies in the form of asteroids, meteroids and comets.

• Asteroid Belt

• Constellations

• Local Group

• Solar System

A model of the universe in which Earth is at the center of the revolving planets and stars.

• Solar System

• Heliocentric

• Geocentric

• Constellations

A model of the solar system in which Earth and the other planets revolve around the sun.

• Heliocentric

• Big Bang Theory

• Orbit

• Geocentric

What was used as evidence to develop the Big Bang Theory?

• The existence of planets revolving around the Sun

• the observation that galaxies are moving away from each other

• the existence of planets revolving around stars other than the Sun

• the observation of stars are still being produced in other galaxies

Which of the following contains billions of galaxies?

• star

• nebula

• universe

• solar system

How did Galileo's observations support Copernicus's ideas of a heliocentric solar system?

• He observed how the constellations moved across the sky

• He used a telescope to observe moons orbiting the planet Jupiter

• He accurately measured the distance from the Earth to the Sun

• He made careful observations of solar eclipses

The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way. Which unit would be best used the represent the distance between the two?

• astronomical unit

• kilometer

• light year

• mile

On which factor is a light year based?

• the speed of light

• the parallax of light

• the reflection of light

• the refraction of light

Which Scientist checked the evidence of the heliocentric model by using a telescope?

• Galileo Galilei

• Johannes Kepler

• Claudius Ptolemaeus

• Nicolaus Copernicus