In this investigation, students will learn that speed, velocity, and changes in velocity are the result of the action of forces on objects such as friction. They will be able to explain how the force of friction opposes motion by...

Students must determine the work done by a horizontal force when there is no friction acting on the box. Students must then find the speed of the box after this work has been added to the box.

Students must determine the work done by a force on an angle when there is no friction present between the box and the table. Students must also find the final speed of the box after this work has been added to the box.

This site is an interactive app of an inclined plane showing the effect of the angle, the weight of the block, and the friction as a block is pulled up an incline.

A video and a short quiz on acceleration.

Students must determine the amount of work that is done by tension and the amount of work done by friction. Then students must find the work that turned into KE.

This lab was designed to have students look at the factors that might affect the angle at which an object will start to move when it is placed on an inclined plane. The friction coefficient of the surfaces, the strength of 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...

This is an article published by the American Physical Society on friction in microscopic gears that results from the adhesion of molecules. A great exploration of this new obstacle in science.

Explore how friction between a surface and tires affects the movement of a bicycle.

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.

Students measure and analyze forces that act on vehicles pulling heavy objects while moving at a constant speed on a frictional surface. They study how the cars interact with their environments through forces, and discover which...

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...

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

A collection of resources on how humans use machines and tools to meet their needs. Covers simple and complex machines, subsystems that transfer forces, mechanical advantage, speed ratio, the effect of friction, efficiency, the science...

Students learn first-hand the relationship between force, area and pressure. They use a force sensor built from a LEGO MINDSTORMS NXT kit to measure the force required to break through a paper napkin. An interchangeable top at the end of...

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.

Experiment how torque causes an object to rotate. This interactive simulation shows how angular acceleration, moment of inertia, angular momentum, and torque relate to one another.

This lesson explains why kinetic friction depends on normal forces. It is 1 of 2 in the series titled "Kinetic Friction & Normal Forces."

This is an experiment that will allow observation on how friction will make a ping pong ball curve when it is thrown into the air.

Students learn about friction and drag - two different forces that convert energy of motion to heat. Both forces can act on a moving object and decrease its velocity. Students learn examples of friction and drag, and suggest ways to...

This study guide on Newton's Laws covers key terms, the three laws, free body diagrams, friction coefficients and tension. Includes equations and an example problem with solution. It is available for download with free registration.

Building upon their understanding of forces and Newton's laws of motion, students learn about the force of friction, specifically with respect to cars. They explore the friction between tires and the road to learn how it affects the...

Experience the effect of friction, air resistance, and applied force upon a sledder. The speed, acceleration, and force values are displayed as the sled moves. Learners can vary the mass of the sledder and the size of the parachute...