Big Bang

The Big Bang is: Which of the following is true?A tiny amount of heat left over from the Big Bang is spread around the universe According to the Big Bang theory, the universe began about _____ years ago. 13.7 billion At the time of the Big Bang,All of the above At the farthest edges of what scientists can see, there areGalaxies that formed not long after the Big Bang

A theory that explains the origin of the universe

COBE stands for: Which of the following gases are the most abundant in the Universe? Hydrogen and helium During the immediate aftermath of the Big Bang, hydrogen nuclei collided and fused into __________ nuclei. Helium Which was the first element produced, according to the Big Bang Theory? Hydrogen According to the Big Bang theory, the universe began13.7 billion years ago In the first few moments after the Big Bang, the universe was _____. Both A and B In the early universe, matter was held together by which force?Gravity The universe has been expanding for about 1 billion years.FALSE According to which theory did the universe originate from a gigantic expansion of a very dense point? Big Bang Theory The Big Bang was immediately accepted by scientists. FALSE The approximate temperature of the background radiation is 8 K. FALSE The Milky Way galaxy is about the same age as the universe. FALSE The Big Bang theory provides no explanation for the amount of helium in the universe. FALSE The Big Bang theory accounts for the existence of light elements. TRUE Scientists have discovered the temperature of space is 3°C.FALSE

Cosmic Background Explorer Satellite

The Big Bang Theory is a hypothesis that states that all matter and energy were at one time compressed into a small volume and then ____________. According to the Big Bang theory, all of the matter in the universe was once scattered and is now concentrating at a single spot. FALSE

Expanded outward

According to the Big Bang theory, the Universe was initially the size of Earth.

FALSE

How many billion years ago did the Big Bang occur?

Over 10

The most widely accepted cosmological model about the creation of the universe is: The Big Bang theory states that the universe began as a point and expanded outward. TRUE It's very difficult to determine scientifically what existed before the Big Bang because there is no evidence.TRUE The first stars didn't form until about 4 billion years after the Big Bang.FALSE

The Big Bang