Gravity Explained

Gravity is one of the four fundamental interactions in physics and also the subject of this week's features on this website. In addition to an introduction to Newton's Law of Universal Gravity and its interpretations, the site also now features a look at gravity on the Earth's surface, which is the way that most of us experience gravity most directly. Here you will also discover how the acceleration due to gravity, g, is calculated. Applications of these concepts, including more ways that they relate to Newton's Laws of Motion and Kepler's Laws of Planetary Motion, will be available in upcoming weeks.