Gravity is a force between materials. The greater the mass, the greater the force of gravity, so things that have a lot of mass, such as the planet Earth, pulls things with less mass, such as a chunk of rock, to its surface. As shown in the diagram, the winner of the gravity tug-of-war between […]
Earth-Moon System
A fun discovery lesson that demonstrates the gravity “tug-of-war” between the Earth and the Moon.
Gravity
What is Gravity? How is Gravity Measured? Gravity is the force of attraction between two bodies due to their mass and distance from each other. The magnitude of the gravitational force between two objects can be determined using the following equation: Newton’s Equation for the Force of Gravity F = G x m1 x […]
Sir Isaac Newton
The English scientist Sir Isaac Newton was born February 4, 1642 in Lincolnshire. His father, a wealthy landowner died shortly before Newton was born. When Newton was three years old, his widowed mother, Hannah, remarried, left Isaac in the care of his grandmother, and went away to live with her new husband. Newton’s later writings […]