Origin of the Universe

What is the "Big Bang Theory" of the origins of the Universe?

• A sudden expansion and created all the matter in the Universe

• The earth exploded and created the Universe

• Our solar system exploded to create all the Universe

• The Universe slowly grew from the Sun

What is the moon?

• A natural satellite that revolves around a planet and reflects the Sun's light

• A man-made satellite that revolves around Earth

• A natural satellite that revolves around the sun

• A small star that is close to Earth

The soalr system is believed to have come from a swirling dense hot cloud of dust and gas. What do you call this huge ball of dust and gas?

• cosmos

• nebula

• planetesimal

• sun

Which is the most accepted theory that explains the beginning of the solar system?

• Big Bang Theory

• Nebular Theory

• Planetesimal Theory

• Tidal Theory

How old is the solar system?

• 3.5 BYA (billion years ago)

• 4.5 MYA (million years ago)

• 4.5 BYA

• 13.82 BYA

What is the big bang theory?

• A theory that states that the universe started in a large mass and then imploded to form everything.

• A theory that states that the universe was there, will be and is there. Is homogeneous and isotropic.

• A theory that states that the universe is slowly coming back to a center.

• A theory that states that the universe started in a small mass and then expanded, the expansion cooled down the temperature and that resulted in the formation of matter, energy, space and time.

What were the original two elements in our universe?

• Hydrogen and Lithium

• Helium and Oxygen

• Helium and Hydrogen

• None of the above

What force prevents individual galaxies from increasing in size despite the continuous expansion of the universe?

• black hole

• dark matter

• gravity

• redshift

Where does the universe originate according to the big bang theory?

• cosmic explosion

• light elements

• nucleosynthesis

• singularity

Who observed galaxies moving away from us?

• Hubble

• Lemaitre

• Penzias

• Wilson