Students calculate the radius of the earth. They use the method and data suggested by Eratosthenes. They investigate the interrelationships among mass, distance, force, and time through experimental processes.

Students explore the basic underlying concepts of Newton's first law of motion. They discuss forces and brainstorm different examples of force and what they act on. Students examine force by observing springs and gravity. They discuss...

Twelfth graders examine illustrations and animations on a Physlets CD in which they must describe motion, analyze graphs, and calculate initial velocity. The Physlet assists in providing active class participation in discussion.

Students examine how when applying the laws of motion to an object in an accelerating frame, using coordinates defined in such frame, one must always add an "inertial force", representing forces caused by the frame's acceleration.

Students, in small groups, research Eratosthenes and his calculations of the Earth's radius. They write a summary of the person, the experiments and his calculations to determine how accurate Eratosthenes was in his estimations of the...

Students read an explanation from a NASA Web-based textbook and then demonstrate an understanding of the text by applying it to calculating drag of both full-sized and model gliders.

Students see if they can get their perceptions of movement expressed in images.

Learners explore the nature and magnitude of gravitational forces.  In this gravitation activity students study gravity and answer questions. 

An extensive discussion of vector addition with links to interactives and exercises.

Through examples and interactive practice problems, this physics tutorial helps students understand how forces behave on an object on an inclined plane.

[Free Registration/Login Required] Learn about adding two vectors together by components in the context of a GPS-style city map. Adjust magnitude and angles in the two vectors to simulate the driverless car. Examples taking this concept...

[Free Registration/Login Required] Learn about adding force vectors in two dimensions using the example of a painting hanging from two strings. Experiment with variables of weight and angles to hang a portrait in this physics simulation....

An excellent lesson on vectors and their components, with multiple illustrated examples.

A complete lesson/tutorial on vectors. Learn about vector addition, vector resolution, vector components, and resultants. Numerous examples and learning exercises are provided.

In this interactive site, students will begin to understand the rules of vector addition, subtraction, and multiplication and apply graphical methods of vector addition and subtraction to determine the displacement of moving objects.

Three complete tutorials on vectors and two dimension forces and motion. Lessons include informational text, interactive activities, animations, and quick, interactive comprehension checks along the way.

In this interactive students will begin to understand the rules of vector addition and subtraction using analytical methods. They will apply analytical methods to determine vertical and horizontal component vectors.

Through informational text, interactive activities, practice problems, online labs, and virtual simulations, students gain an understanding of vectors essential to understanding of physics.

In this interactive module, students will learn how to define and distinguish between scalar and vector quantities. They will assign a coordinate system for a scenario involving one-dimensional motion.

Intended for students with a strong math and science background, a course introducing physics concepts of Newtonian mechanics, special relativity, gravitation, thermodynamics, and waves. Twenty-four class sessions in video format are...

Professor Shankar introduces and discusses vectors in multiple dimensions. The discussion includes topics such as null vectors, minus vectors, unit and velocity vectors. The lecture can be accessed as video, audio or as a transcript.

Test yourself on finding the length of a vector and the angle the vector makes with respect to the XZ plane.

This Java applet simulation explores vector addition of two vectors in two dimensions. Given the magnitude and direction, students must determine the vector components.

An interactive java applet model allows students to explore vectors. Students can practice finding the direction and magnitude of a vector given its x and y-components as well as practice finding the x and y-components given a vector's...