This simulation of a pendulum will demonstrate how friction and force have to change to keep the mass in the same position on the pivoted rod.

[Free Registration/Login Required] Learn about kinetic friction and how objects slide to a stop under the influence of friction.

Students explore the physics utilized by engineers in designing today's roller coasters, including potential and kinetic energy, friction, and gravity. First, students learn that all true roller coasters are completely driven by the...

By taking a look at the energy of motion all around us, students learn about the types of energy and their characteristics. They first learn about the two simplest forms of mechanical energy: kinetic and potential energy, as illustrated...

By the end of this section, you will be able to define drag force and model it mathematically, discuss the applications of drag force, define terminal velocity, and perform calculations to find terminal velocity.

Students are introduced to the concepts of torque, power, friction and gear ratios. Teams modify two robotic LEGO vehicles by changing their gear ratios, wheel sizes, weight and engine power, while staying within a limit of points to...

By the end of this section, you will be able to state Hooke's law; explain Hook's law using graphical representations between deformation and applied force; discuss the three types of deformations: changes in length, sideways shear, and...

A lesson about friction can be found on this website. Students will experiment to see how motion and frictional force affect the game of football.

Review the key concepts, equations, and skills for friction, including how to find the direction and magnitude of the friction force.

Learn about the force of friction on this reference page which defines why friction is important and how it can change physic problems.

Step into Dirtmeister's Science Lab and become a Science Snooper! Work side by side with him as he sets out to answer the challenge question: "How does the force of friction affect us in our daily lives?"

Through illustrated examples and interactive practice problems, students find the value of forces acting upon objects using force equations.

This lesson will introduce forces and give an overview of some different types of forces.

A video and a short quiz on acceleration.

This article on Khan Academy is about air and fluid resistance that is caused by friction.

Teaches what friction force is, the difference between static and kinetic friction, and how friction force is calculated.

This lesson will introduce the concept of friction and explain how it can affect forces. It is 2 of 5 in the series titled "Friction."

This lesson will introduce the concept of friction and explain how it can affect forces. It is 3 of 5 in the series titled "Friction."

This lesson introduces the concept of static friction and explains how it depends on the surface an object is resting on. It is 2 of 2 in the series titled "Static Friction Revisited."

By the end of this section, you will be able to define net force, external force, and system; understand Newton's second law of motion; and apply Newton's second law to determine the weight of an object.

Students study how the nature of two materials in contact, and the smoothness of their surfaces affect the magnitude of the sliding force of friction. They use a force sensor to measure frictional force for different surfaces.

Learners observe objects in motion down a ramp to discover how the force of friction affects an object's motion. Includes the lesson plan, vocabulary list, and extensions for students.

In this activity, students' will use a Dual range force sensor to measure the force required to pull a block across different surfaces. They will examine the results to see when more force is needed to move the block and understand the...

Explains what static and kinetic friction are and discusses the coefficient of friction for different situations. Presents two simple lab experiments and real-life examples of friction in action.