Kepler’s Three Laws
Planetary and Satellite Motion In the early 1600s, Johannes Kepler proposed three…
Cavendish and the Value of G
Isaac Newton's law of universal gravitation proposed that the gravitational attraction between…
Newton’s Law of Universal Gravitation
Isaac Newton compared the acceleration of the moon to the acceleration of…
The Apple, the Moon, and the Inverse Square Law
In the early 1600's, German mathematician and astronomer Johannes Kepler mathematically analyzed known astronomical…
Gravity is More Than a Name
Universal Gravitation Nearly every child knows of the word gravity. Gravity is the…
Roller Coasters and Amusement Park Physics
People are wild about amusement parks. Each day, we flock by the…
Newton’s Second Law – Revisited
Applications of Circular Motion Newton's second law states that the acceleration of an…
Mathematics of Circular Motion
There are three mathematical quantities that will be of primary interest to…
