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Hipervinculo Física
Hans Christian Oersted was a Danish scientist who explored the relationship between electric current and magnetism. Current is the flow of electrons, and is how we hardness electricity. Currents creat ...
Hipervinculo Física
There are 8 planets (and one dwarf planet) in orbit around the sun, hurtling around at tens of thousands or even hundreds of thousands of miles an hour. Because the planets are attracted to the sun an ...
Hipervinculo Física
A lens is a clear object, usually made of glass or plastic, which is used to refract, or bend light. Lenses can concentrate light rays (bring them together) or spread them out. Common examples of lens ...
Hipervinculo Física
Energy comes in many forms. Electric energy can be converted into useful work, or mechanical energy, by machines called electric motors. Electric motors work due to electromagnetic interactions: the i ...
Hipervinculo Física
It used to be that if you had a string of holiday lights and one bulb went out, the whole string no longer worked. This was because the lights were set up in a series circuit. Recently, companies have ...
Hipervinculo Física
Have you ever wondered why oil heats up so quickly in a pan, but water takes so long to boil?Heat, which is the exchange of energy between a system and its surroundings, occurs in three major ways: co ...
Energy is neither created nor destroyed: it is only transformed. There are many different forms of energy, including kinetic energy (the energy of motion), potential energy (energy that is considered ...
Hipervinculo Física
Sailors and travelers have used Polaris, also known as the North Star, for centuries to locate their position on the surface of the Earth. Polaris is the brightest star in the constellationUrsa Minor, ...
Hipervinculo Física
Microwave ovens perform dielectric heating, using microwaves stimulated by electricity to heat up dielectric . A dielectric material is one that can be polarized by an applied electric force. Electric ...
Hipervinculo Física
Steam, which is the gaseous version of water, can be used to power trains, lights in buildings, and your very own model boat! Learn how to make a steam powered rocket boat to see Sir Isaac Newton's th ...
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