Flat
Physics is the science of modelling the universe around us in an attempt to understand the universe, and to predict its behavior, by examining and manipulating the model. . For example, a common model in physics is the mathematical equation: . F = ma. . This model (an equation can be a model) accurately and completely predicts what force is needed ('F') to accelerate ('a') a body of a certain mass ('m'). By manipulating this model - by plugging in various values for F, m, and/or a, we can understand and predict the relationship in the real world between force and acceleration.
The expanding universe model predicts that galaxies should be getting farther apart now. This is based on the observation that the universe is expanding, with galaxies moving away from each other at increasing speeds.
A model that lets you predict things-
Copernicus suggested a heliocentric model of the universe. Meaning, the earth was the centre of the universe and other planets had to orbit around the earth. This model of the universe was against Ptolemy's model of a geocentric model; a stationary Earth at the centre of the universe.
Its strength was that it could predict the positions of the planets with pretty good accuracy. Its weakness was that by 1600 the techniques of measuring planets' positions had advanced to the point where discrepancies were noticed in the predictions made with the geocentric model.
This model of the universe placed the Earth at the center of the universe
Galileo is famous for observing and proving his heliocentric model of the universe. After his observation the existing model of the universe was slowly phased out.
it is the oscillating model
The geocentric modelof the universe stated that the earth was at the centre of the universe.
The steady state Universe model suggests that the Universe has always existed in a constant state with no beginning or end. It proposes that new matter is continuously created to maintain a constant density as the Universe expands. This model has been largely replaced by the Big Bang theory, which offers a different explanation for the origin and evolution of the Universe.
Earth was the center of the universe
What is known as the Big Bang Theory is the currently recognized model of how the universe began.