JONNY NELSON: Energy. There are lots of different types and lots of different ways of storing it. Chemical energy in a sparkler, elastic potential energy that fires a toy into the air, and many, many ...

What is the law of conservation of energy? The Law of Conservation of Energy is a fundamental concept in physics that states that energy cannot be created or destroyed in an isolated system; it can ...

DIY Science Time is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

Water wheels, racers, and wrecking balls. Mechanical energy is the combined potential and kinetic energy in an object that enables work to occur through the movement of another object. Learn how ...

The Work Energy Principle is one of the big ideas in introductory physics courses. It's so big that the textbook presentation can get a little confusing - but it doesn't have to be that way. I haven't ...

Magnetic The energy stored when repelling poles have been pushed closer together or when attracting poles have been pulled further apart. Fridge magnets, compasses, maglev trains which use magnetic ...

Suppose we consider the incline to be smooth. In this case, there is no work done on the system by non-conservative forces. Consider the simulation results below of the block sliding on a smooth ...