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

[Free Registration/Login Required] This resource provides information about Coulomb's law.

The necessity of gravitation to a circular orbit is discussed and equations for the orbital speed are derived from the law of universal gravitation. Binary systems in which two objects orbit about a center of mass are explained and...

A demonstration/lab idea for determining the numerical value of the universal gravitation constant using a torsion balance.

A discussion and statement of an equation for orbital speed. An interactive JavaScript form allows the user to investigate the relationship between orbital height and orbital speed. A very good opportunity to practice and receive...

Gravity as a fundamental force is explained and an equation for universal gravitation is given.

In this activity, students can use a light sensor to record the light intensity at various distances from a bulb. They will compare the data to an inverse square and a power law model.

How far would you have to travel so that the light of the full sun would provide "daylight" no brighter than twilight on Earth? This project describes a method to verify the inverse square law: how light, sound, electrical signals, and...

A short description of how Cavendish measured the value of G - the universal gravitation constant and supported Newton's theory. Illustrated.

This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...

In an online presentation format, learn about Coulomb's law and how resistance is measured.

In learning about the Law of Universal Gravitation, students explore the value of G, and understand why this value is so location dependent on Earth.

Home page for a hypertext physics course on auditorium acoustics and acoustical design.

This life of Isaac Newton' traces his life from birth through childhood to his rise as a renown scientist and mathematician.

An online version of a book pertaining to task of launching rockets into space and subsequently navigating them through space. The first several "chapters" (pages) describe the influence of gravity on Earth and the barriers which it...

A physics tutorial on designing an auditorium and solving the problem of sound reflection. Illustrated.

This hypertext physics course tutorial on nonfocusing surfaces relates various design principles to good auditorium design. Illustrated.

This page and the many pages which are indexed to focus on the behaviors of sound which characterize it as a wave. Reflection, refraction, interference, diffraction and more are clearly illustrated and explained.

A tutorial from a hypertext physics course book that discusses reverberation. Illustrated.

This review from the Glenbrook South High School provides a series of questions on various topics associated with static electricity (such as electrical insulation). Answers and explanations are hidden, yet easily accessed from within a...

Dozens of statistical terms are defined and illustrated in this glossary.