The nucleus is surrounded by clouds of other tiny particles called electrons. The center is called the nucleus, made up of tiny particles called protons and neutrons. The features that make one atom different from another also determine its electrical properties.Īn atom is like a tiny solar system. There are only about 100 different atoms that make up everything in our world. These atoms are the smallest particles into which an element or substance can be divided without losing its properties. All matter solid, liquid, or gas - is made up of molecules, or atoms joined together. The basic building block for matter, anything that has mass and occupies space, is the atom. All Rights Reserved.Įlectron theory helps to explain electricity. A loud crack of lightning is easily heard, while a fuse "blowing" may sound like a soft "pop" or "snap." With electricity flowing through them, some insulated wires may feel "warm" and bare wires may produce a "tingling" or, worse, quite a "shock." And, of course, the odor of burned wire insulation is easily smelled. The effects of electricity can also be heard, felt, and smelled. a lamp gives off light a motor turns a cigarette lighter gets red hot a buzzer makes noise. However, the effects of electricity can be seen. It is sometimes called an "unseen" force because the energy itself cannot be seen, heard, touched, or smelled. Transcript ELECTRICAL FUNDAMENTALS GeneralĮlectricity is a form of energy called electrical energy.
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