[Free Registration/Login may be required to access all resource tools.] Understand the effects of magnitude of force pairs between objects. Know the differences between kinetic and static friction.

Learn about forces (push or pull), gravity, and friction in this module by training dolphins.

[Free Registration/Login may be required to access all resource tools.] In this module, students learn what causes friction, what factors affect friction, and how it is calculated.

Use your knowledge about friction to help Carrie get to the Invigatron before someone steals it. Following the activity, read more about friction and resistance, and then take a quick quiz to check for understanding.

Learn why every force is a push or a pull.

Covers the meanings of force, friction, and gravity, and the differences between magnetic and elastic spring force, and between weight and mass. The effect of air resistance on an object's motion is also touched upon.

Explore the world of finding individual forces. "The process of determining the value of the individual forces acting upon an object involve [sic] an application of Newton's Second law and an application of the meaning of the net force."

In this document, we will try to answer a fundamental question of physical science, "Why do things start to move, slow down, speed up, stop moving or change direction?" In answering these core questions we can develop concepts that can...

Create an Atwood's machine and a modified Atwood's machine in this interactive. Change the amount of mass on either object, introduce friction forces, and measure distance and time in order to calculate the acceleration.

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.

A quick presentation reviewing why static friction depends on normal forces.

This lesson will introduce the concept of friction and explain how it can affect forces. It is 4 of 5 in the series titled "Friction."

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?"

This slide show presentation introduces the idea of the coefficient of kinetic friction.

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.

First, read some fast facts about forces, then take a ten-question, multiple-choice quiz. Check to see if your answers are correct after each question.

Explore the effects of forces around us in the world.

Learn more about finding acceleration through the practices found in this lesson. "The process of determining the acceleration of an object demands that the mass and the net force are known." Check out this comprehensive site.

This program gives students a visual representation of the forces on a block that is on an inclined plane. The students can watch how force gravity, force normal, and force friction change as the angle of the plane changes. Students can...

This page summarizes each section of Chapter 5: Further Applications of Newton's Laws: Friction, Drag, and Elasticity from the AP Physics online text. These include friction, drag force, and elasticity: stress and strain.

In this lab activity, students will become familiar with Newton's 2nd Law of Motion. By investigating the motion of different skateboarders pulled with a variety of constant force values, they will discover that bodies acted on by a...

This is a glossary of terms and definitions used in Chapter 5: Further Applications of Newton's Laws: Friction, Drag, and Elasticity from the AP Physics online text.