ANTA01H3 Chapter 3: Chapter 3 Notes
Document Summary
Are a number of hypotheses to account for the origin of the universe. In the very beginning all the energy, space, and matter of known universe were compacted into a dense, hot, inconceivably tiny speck of energy. Others believe, the universe has always been here. Science can account for most of the history of the universe, using the fact that the universe is rapidly expanding. Scientists apply the current laws of physics and astronomy and work backward. Hypothetically they shrink the universe an determine what would happen to all its matter and energy under conditions of decreasing size and increasing density and heat. Also plan a time frame for the events involved. Around 15 billion years ago, was when the tiny speck began to expand. This event is known as the big bang. This inflation is hypothesized to be caused by the accumulation of a material that created a repulsive force the opposite of gravity"s attractive force.
