Newton's "law" of gravity is a mathematical description of the way bodies are observed to attract one another, based on many scientific experiments and observations. The gravitational …

1. Introduction: Review the definition of gravity Drop a ball and explain why it falls downward Explain that the strength of a gravitational pull is determined by the masses of the objects …

GRAVITY The force of attraction between two objects which is influenced by the mass of the two objects and the distance between the two objects. GYROSCOPE A heavy wheel or disk …

The cluster does not behave as scientists would expect it to if only the visible matter is generating the gravity present in the cluster. 'Dark matter' theory suggests that a huge amount of dark …

The Moon's low density (3.3 g/cc) shows that it does not have a substantial iron core like the Earth does. Moon rocks contain few volatile substances (e.g. water), which implies extra …

An invisible object in outer space formed when a massive star collapses from its own gravity. A black hole has such a strong pull of gravity that not even light can escape from it.

The university reopened and Newton took a fellowship in order to obtain his masters degree. As the years progressed, Newton completed his work on universal , diffraction of light, centrifugal …

A star is a big ball of gas which gives off both heat and light. So where do stars come from? What happens to them as they grow older? A galaxy contains clouds of dust and gas, as well as …

It is this energy which causes the star to shine and stops it from collapsing due to the pull of gravity. Does the conversion of this tiny bit of mass into energy create enough energy to …

A galaxy is a cluster of stars, dust, and gas which is held together by gravity. Galaxies are scattered throughout the universe and they vary greatly in size. A galaxy may be alone or it …