Work and Energy

Water wheels were first used more than 2,000 years ago, yet now they are only a small part of the energy generation people have come to expect. The Michigan-based energy unit covers the common types of energy used, residential energy...

Car crashes provide a good method for studying kinetic energy transfer. Scholars explore energy through hands-on simulated crashes. They work together to design their own experiments and apply the knowledge gained to a situation that...

Warm up to the idea of solar energy. A instructional activity includes three activities that challenge scholars to apply knowledge in new ways. First, they learn to run an alarm clock without a battery by using solar energy. Next, they...

The first activity may not work for your class if you don't have access to an open area of 30 meters and two cars of different masses, but the remaining activities can be used in any physics course. They all involve the investigation of...

Planning a physics unit on energy can take a lot of work, luckily this instructional presentation is here to help. Covering everything from work and energy to elastic collisions and the conservation of momentum, this comprehensive...

Your introductory physical science class will be energized by this PowerPoint. They will be able to define energy, work, and power. They will be able to perform calculations for kinetic and potential energy. They will be able to describe...

Everything around you is related to chemistry and more specifically, the energy within a system. The video explores how energy, in its different forms, changes after conversion — given off as heat or absorbed as heat  in chemical...

What makes a clock tick or a bulb light up? The concept of work is explained to a backdrop of clever animation. Physics fans learn that the amount of work equals the product of the force and distance, and that the rate equals the amount...

A NASA narrator and a cute cartoon-like character named Norbert demonstrate that applied force and distance of motion allow us to calculate work. The relationship between work and energy is explained. The difference between potential...

If renewable energy sources are the best option, why aren't they used on a global scale? Junior environmentalists explore the benefits and problems associated with energy sources such as solar, wind, and biomass with a short video and...