[Free Registration/Login may be required to access all resource tools.] Newton's law of universal gravitation and factors that affect the strength of gravity between two objects.

[Free Registration/Login may be required to access all resource tools.] Using Newton's Law of Gravity and the equations of uniform circular motion, students solve problems involving the force of gravity.

Review the key concepts, equations, and skills for Newton's law of gravity, including how to find the gravitational field strength.

States the equation of Newton's law of universal gravitation. States the value of G and uses the equation to solve problems.

A very detailed look at gravitational force and the many theories that have been put forward to try to explain it. Includes lots of illustrations.

[Free Registration/Login Required] Learn about the universal law of gravity and the role Newton played in relating terrestrial and celestial mechanics to one another.

This project is an experiment in classical physics. You'll be following in Galileo's footsteps, and investigating Newton's laws of motion, but you'll be taking advantage of modern video recording technology to make your measurements. The...

Explanation of how astronomers and scientist developed the current theories of gravity.

Describes the logic behind the development of Newton's law of universal gravitation. Beginning with Johannes Kepler and his three laws of planetary motion, content walks the reader through Newton's thought process and development of this...

This site, which is provided for by NASA, discusses the thinking which led Newton to understand universal gravitation.

Have you ever felt that queasy feeling in a moving elevator? Explore the physics behind the sensations of weightlessness and weightiness. Teacher notes and a downloadable handout are also provided.

Design your own virtual rocket, and then test launch it. Watch tutorials about Newton's laws of motion and rocket basics to help you improve your rocket's performance.

Assess your understanding of Newton's three laws of motion and the ability to distinguish between the three with this interactive multiple choice quiz. Receive immediate feedback to your answers.

This lesson focuses on Newton's Law for falling objects including terminal velocity, the three stages of falling, a diagram showing what happens to the speed of a skydiver from airplane to ground, velocity-time graphs for falling...

This experiment examines Newton's Second Law of Motion. Learn how centrifugal and centripetal force help to keep a marble in a can when turned upside down.

[Free Registration/Login Required] Learn about orbits and how an object can stay in orbit under the influence of gravity. By adjusting launch velocities users will understand how to successfully put a virtual satellite into orbit without...

In this interactive module students will explore what different ancient cultures believe was an explanation of the stars and planets. They will look at how the work of Nicolas Copernicus revolutionize the world of astronomy and learn how...

[Free Registration/Login Required] Test your knowledge of Newton's Law of Universal Gravitation with an animation and a short quiz.

By the end of this section, you will be able to define normal and tension forces, apply Newton's laws of motion to solve problems involving a variety of forces, and use trigonometric identities to resolve weight into components.

Take this ten question multiple choice quiz on laws of motion.

In this learning module students can get a better understanding of how gravity affects our solar system.

Students learn what a pendulum is and how it works in the context of amusement park rides. While exploring the physics of pendulums, they are also introduced to Newton's first law of motion - about continuous motion and inertia.

Newton's First Law also called the law of inertia is the most important thing to realize about motion. This article offers more information on motion and explains solved problems involving Newton's First Law. Also included is a video...

A site dedicated to help students prepare for the AP Physics B test. This specific site reviews gravitation including Newton's Law of Gravity, orbits of planets and satellites, and Kepler's three laws. Site contains links to video...