[Free Registration/Login may be required to access all resource tools.] Explains inertia and how it affects motion, the relationship between inertia and mass, and how to overcome inertia.

See Newton's First Law of Motion in action. View a movie that illustrates this principle of physics.

Looking for some more explanantion on a topic covered in physics class? This site contains videos that explore some physics concepts. Videos are broken down by topics. Some videos also give examples on how to solve problems.

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.

As students begin to understand the physics behind thrust, drag, and gravity and how these relate these to Newton's three laws of motion, groups assemble and launch the rockets that they designed in the associated lesson.

A handy resource that gives an overview of equations and definitions pertinent to an introductory, college-level physics course, with two of its three sections focusing on motion-related topics and principles.

In this activity, students will learn about Newton's 2nd Law of Motion. They will learn that the force required to move a book is proportional to the weight of the book. Engineers use this relationship to determine how much force they...

This lesson in high school physics on Newton's Second Law of Motion provides a discussion of free fall and air resistance, and answers, "Why do objects which encounter air resistance ultimately reach a terminal velocity?" and "In...

In this physics tutorial, the law of momentum conservation will be combined with the use of a momentum table and some algebra skills to solve problems involving collisions occurring in isolated systems.

In this interactive physics tutorial, students will take a more qualitative approach to some collision problems. The questions provide a real test of conceptual understanding of momentum conservation in collisions.

As with collisions, this interactive physics tutorial shows students how momentum is conserved in explosions.

[Free Registration/Login may be required to access all resource tools.] Break down how the relationship between acceleration and mass directly relates to the mass of an object.

[Free Registration/Login may be required to access all resource tools.] Understand why for every action there is an equal and opposite reaction.

[Free Registration/Login Required] Learn about torque balance in the context of a medieval drawbridge using this interactive simulation. A PDF worksheet and a video tutorial are also available. [3:47]

Combined with aspects of circular motion, students discover that Kepler's third law follows directly from the law of universal gravitation. This unit will expand upon the conservation of energy principle for problems beyond the confines...

This physics tutorial aims to model and predict not the motion of just one object, but rather what happens when two or more objects collide. The concept of momentum will be the main focus of this module.

Through illustrated examples and practice problems, students explore the centripetal force requirement. So for an object moving in a circle, there must be an inward force acting upon it in order to cause its inward acceleration.

Experience a simulation of ballistic trajectories in relationship to Earth's orbit. Java 1.5 or more recent is required.

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.

Assess your understanding of force, mass and acceleration and the relationship amongst the three with this interactive multiple choice quiz. Immediate feedback is offered.

In this interactive tutorial, analyze two-body problems in which the objects are moving in different directions.

Variation on the standard Atwood's Machine model, where one hanging mass swings like a pendulum and the other remains stationary. Manipulate the conditions and observe the results.

A Java-based simulation where students can observe what happens to a free-falling object, with and without air resistance. Controls allow the user to adjust settings and the results are graphed as the simulation progresses.

Online classroom site explaining the concept of balanced and unbalanced forces. The site has examples and exercises for the student to review and try.