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Electricity & Magnetism
Transcript of Electricity & Magnetism
Electric current is a flow of electric charge (usually in the form of electrons) through a substance. The substance or conductor that an electric current flows through is often metal and wire although current can also flow through some gases, liquids, and other materials. An electric circuit is like a pathway made of wires that electrons can flow through. A battery or other power source gives the force (voltage) that makes the electrons move. When the electrons get to a device like a light bulb, your computer, or a refrigerator, they give it the power to make it work.
Electricity travels at the speed of light - more than 186,000 miles per second! Electricity always tries to find the easiest path to the ground. Electricity can be made from wind, water, the sun and even animal elimination. The first power plant - owned by Thomas Edison - opened in New York City in 1882. Thomas Edison invented more than 2,000 new products, including almost everything needed for us to use electricity in our homes: switches, fuses, sockets and meters. Benjamin Franklin didn't discover electricity, but he did prove that lightning is a form of electrical energy.
This is our Electricity & Magnetism video
By: Giselle, Leslie, Ashley
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We rarely notice the electricity is all around us, because positive and negative charges usually balance. There are two types of electric charge:positive and negative. However, when objects touch, electrons can hop between them. This may leave each object with a static charge. A comb, for example, can strip electrons from hair, making the hair positively charged, crackly, and fly-away.
Fun facts about Electricity
Magnets are not just metal pieces that attract each other. There is a lot of science behind it. In fact did you know magnetism is one of the most powerful forces in the universe. Gravity being the weakest. Mass dose not affect magnetism.
The difference of a parallel circuit and simple circuit
A simple electrical circuit. This circuit has a power source, a complete path for electrons to flow, and a resistor as the load. An electric circuit is a path in which electrons from a voltage or current source flow.
Hi are name are Giselle Cucufate, Leslie Fernandez, and Ashley Contreras. The Earths Magnetic field is so big that it all the way to outer space. That is why you can put two magnets together and they will jump away. The magnets power is measured in Tesla. Magnetism was discovered 800 years ago by ancient China and Greece. Earth is made out of a metal that you might have in your house.
what electricity can do
what happens when you rub a balloon in your hair
things that use electricity
A parallel circuit is a closed circuit in which the current divides into two or more paths before recombining to complete the circuit.