Big Bang Theory Introduction

Which of the following is evidence of the Big Bang Theory?

• Cavemen heard a loud bang at the beginning of time.
• The universe isn't moving
• The universe is expanding
• The universe is getting smaller

What shape do scientists think the universe is?

• Sphere
• Triangular
• Saddle Shaped
• Flat

Which of the following statements best summarizes the presence of matter in the universe?

• There are more metal elements in the universe than nonmetals.
• All elements exist in an equal amount throughout the universe.
• There are more heavy elements than light elements.
• There are more light elements than heavy elements.

Which of the following is NOT true about the Big Bang Theory?

• It is the scientific explanation of how life began on Earth and evolved over time.
• It is the scientific explanation for the origin of the universe.
• It states that the universe expanded from a single point and is still expanding today.
• It states that the universe used to be much hotter and smaller.

What can we conclude from the observation that nearly all galaxies are moving away from us?

• Massive black holes are drawing galaxies away from Earth.
• The Sun and Earth are located at the center of the universe.
• Everything in the universe is moving the same direction.
• The once-smaller universe is expanding in all directions.

Which of the following best describes the expansion of the universe?

• As space expands, matter spreads out to fill up the empty space.
• Expansion involves the spreading of matter into infinite and empty space.
• As space expands the empty space between matter increases.
• As space expands, matter continually is created to fill that space.

Which of the following is the best description of the Big Bang Theory?

• The Big Bang Theory is the prevailing model about the universe’s origin and is supported by observations of the universe’s expansion.
• The Big Bang Theory is just one of the ideas about the universe’s origin, many of which are equally respected by the scientific community.
• The Big Bang Theory states that pre-existing matter was compacted into a hot and dense form and suddenly exploded into infinite, empty space.
• The Big Bang Theory is the scientific explanation of how the Sun, Earth, and the rest of the Solar System were formed at the beginning of time.

The Big Bang Theory explains the formation of the...

• Earth

• Sun

• Universe

• Solar System

What does the Big Bang theory suggest?

• The universe was just there
• The Milky Way is the only solar system
• The universe is continually expanding
• The universe is collapsing in toward a single point

How is the "Big Bang" described?

• an explosion

• an expansion

• a contraction