Energy & Electricity in Science : How Is a Photon Produced?

Hi, I’m Steve Jones and I’m going to tell you how a photon is produced. Now in an atom of course we have a nucleus but above the nucleus we have electrons. And it was discovered last century, the twentieth century that electrons can’t have any levels, they can only have specific levels of energy. […]

Energy & Electricity in Science : How Does a Solenoid Work?

Hi, I’m Steve Jones and I’m going to tell you how a solenoid works. Well first of all, what is a solenoid? It’s very simple, it is a coil of wire. This is usually copper wire and as you can see here, it’s coiled around like this, around some kind of former, this may be […]

Electricity and Magnetism – Introduction to Electricity

Objects do not normally have a positive or negative charge. However, within the atoms of some materials, the electrons are able to leave and move to other atoms. When an object gains or loses electrons, the object can become charged. Some materials, like copper and aluminum, are called conductors because their electrons can easily move. […]

Electricity and Magnetism -Magnetism

When an electric current flows through a coil of wire, a magnetic field is produced. This relationship between electricity and magnetism is called electromagnetism. The magnetism of an electromagnet can be controlled by switching the electric current on or off. Electromagnets are used in many devices including computers, doorbells, and cranes that pick up heavy […]

Energy & Electricity in Science : How Does an Electric Motor Work?

Hi, I’m Steve Jones and I’m going to explain how an electric motor works. Now I’ve drawn this diagram, it looks rather complicated but it isn’t really that complicated. There are two main elements. The first is this pair of magnets, one with a north here, the other with a south here. These are usually […]

Electricity and Magnetism – Electric Circuits

There are different types of circuits. The current in a series circuit can only flow in one path, and it must flow through all the circuit components. In this series circuit, the current flows through each of the bulbs in a sequence. Because all the loads in the circuit share the same current, the bulbs […]

Energy & Electricity in Science : How Does an Electric Circuit Work?

Hi I’m Steve Jones and I’m going to explain how an electric circuit works. Well first of all we have to remember that there are certain things which conduct electricity which we call conductors and there are others which don’t conduct which are called insulators. Now conductors and insulators you must know the difference between […]

Energy & Electricity in Science : How Does a Light Bulb Work?

Hi, I’m Steve Jones, and I am going to tell you how a light bulb works. Well, first of all we have to see the construction of the light bulb. In fact, the working part is what we call a filament which is a thin piece of metal, and this gets white hot. It glows […]

Live Science: Static Electricity

My name is Dave and welcome to the Science Museum of Virginia. Electricity is the energy created by moving negative charges or negative ions. Over here I have a Van de Graaff generator, so let’s see what happens when negative gets near a positive. Ah what do you see? We’re experiencing a discharge of static […]

The Electric Motor: Magnets and Electricity

What in the world is going on here? I have a few simple materials. I have a battery, I have some wire, then I have a magnet here and above the magnet is a coil of copper wire. You put all that together and I have some really cool things happening. And believe it or […]