Electromagnetic energy is a form of energy that can be reflected or emitted from objects through electrical or magnetic waves traveling through space. Electromagnetic energy comes in many examples including gamma rays, X-rays, ultraviolet radiation, visible light, microwaves, radio waves and infrared radiation.Know More
The electromagnetic spectrum is the range of all types of electromagnetic radiation (electromagnetic radiation being a type of electromagnetic energy). Electromagnetic radiation is a kind of energy that travels and spreads outward as it goes, such as the lamp sending visible light in a person's home or the radio waves coming from the radio station. People encounter electromagnetic spectrum energy all the time.
Radio electromagnetic energy can be seen not only in the radio waves captured and emitted by radio stations, but also in the radio waves emitted by gases in space and stars in space. The microwave radiation cooks popcorn and is also used by astronomers to discover the structures of nearby galaxies. Infrared energy can be seen through night vision goggles and in space it helps astronomers map the dust found between the stars. Visible light is an energy that humans can detect on their own with their naked eye. Light bulbs, stars and fireflies all emit visible light. Ultraviolet radiation is emitted by the sun and is what gives humans skin burns or tans.Learn more about Electricity
Electromagnetic induction is the phenomenon of using a magnet to create, or induce, a magnetic field in a conductor while simultaneously dislodging free electrons within it. This produces a flow of current and a rising and collapsing magnetic field around the conductor, which is the opposite polarity to that of the magnet from which it was induced.Full Answer >
Static electricity is caused when objects or particles make contact and either gain or lose electrons due to friction, and the charged object discharges into a nearby object. Rubbing objects together increases the contact area. Examples of static electricity include touching a doorknob in cold weather and receiving a shock.Full Answer >
The size of the electric force between two objects is affected by the strength of the charge and the distance between the objects. Objects with strong positive and negative charges will have a greater electric force. As the distance between the objects decreases, the electrical force increases.Full Answer >
The three laws of electric charges are that like charges repel, unlike charges attract and that charged objects can be attracted to neutral objects. This means that two objects with the same charge push away from each other, while two objects with opposite charges pull towards each other.Full Answer >