Support for Java Applets, including Physlets, has been discontinued by browsers and Oracle. Thus, traditional Java-based Physlets are no longer supported on this website. Please note Open Source Physics (OSP) Java programs continue to run on computers with Java if users download the jar file.

The OSP team is busy updating and developing simulations using HTML5 + JavaScript.
These simulations run on almost all platforms including tablets and cellphones. Explore the Third Edition of Physlets Physics or search OSP for JavaScript to find these simulations.

Chapter 12: Gravitation

Gravitational forces describe how massive objects are attracted to each other. As a consequence of its range, the gravitational force is an extremely important force for massive objects. But is the force responsible for the motion of the planets (a celestial gravitational force) the same force responsible for the motion of objects near the surface of the earth (terrestrial gravitational force)? Yes! In 1685 Newton proposed the idea of universal gravitation, a unification of celestial and terrestrial gravity.

Table of Contents

Illustrations

Explorations

Problems

Mechanics TOC

Overview TOC

The OSP Network:
Open Source Physics - Tracker - EJS Modeling
Physlet Physics
Physlet Quantum Physics