A video and a short quiz on acceleration.

We all recognize what friction is, but do you really understand what causes it? This project focuses on friction, its causes and forces and specifically how it affects how fast you can slip down slides.

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...

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

Students learn about various forces and how they relate to everyday life in this interactive learning module.

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.

In this science project, you can investigate how submarines use stabilizing fins to move forward. Exploring friction and buoyant force you will get closer to understanding how these large ships function. Research resources are included...

This resource provides reproducibles that aide in student learning of force and motion. Also offers hands-on and cooperative learning activity ideas as well as an ESL/ELD activity. This resource is in PDF form; requires Adobe Reader.

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.

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?"

A simple demonstration using a person on a bicycle to illustrate how thrust and resistance balance to achieve a constant rate of speed.

The Thinking Fountain provides this simple experiment for understanding friction and it relationship to energy.

This Science Buddies project explains how to build a mechanism that will reproducibly swing a hammer so you can determine the amount of force needed to hammer a nail through various densities of wood. The Science Buddies project ideas...

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

Students 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.

[Free Registration/Login may be required to access all resource tools.] Definition of force, how it relates to motion, and force as a vector.

A detailed explanation of the different types of forces that can be applied to an object and how to represent them in a free body diagram. Includes examples and some practice problems to try, with solutions provided.

This site is on the science and art of skateboard design, including equipment, tricks, glossary of terms, and a live webcast of a skateboard performance.

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

This is part of a lesson on Newton's Laws of Motion that focuses on inertia and mass. It restates Newton's first law of motion. The lesson also gives a helpful visual description concerning friction.

In this lesson, students make predictions about falling objects of different sizes and masses to learn about gravity and air resistance. Includes audio vocabulary list and extension activities.

Provides a long list of physics formulas for easy reference.