Basic terms

2. the small, dense center of an atom where most of its mass is concentrated.It contains protons and neutrons.
3. A form of energy caused by the behavior of electrically charged par ticles. This is what you pay your electric company to supply.
5. a fundamental property of matter that embodies the capacity of a physical system to do work or induce change
6. They carry a negative electric charge and are located outside the nucleus in an electron cloud.
7. an atom or molecule that has gained or lost electrons, giving it an electric charge.
8. The movement, or flow, of electrically charged particles.
9. the basic building blocks of everything in the universe, whether nat ural or manmade.
11. Electronics is the branch of science and technology that deals with the study of electrons and their movement. It focuses on how electric charge flows and can be controlled.This control is used in circuits and devices to perform useful tasks.
13. Materials (like copper, silver, and aluminum) that let electricity flow easily because their electrons can move around freely. That’s why copper is commonly used in wires.
14. They have no electric charge, and exist along with protons inside the nucleus.

1. the force that pushes electric charges (electrons) through a circuit.
4. A fundamental property of certain particles that describes how they interact with each other. There are two types.
10. They carry a positive electric charge and exist inside the nucleus, or center, of the atom.
12. Materials (like rubber, plastic, glass, and air) that do not let electricity flow easily because their electrons are tightly held in place. They are used to cover wires and keep us safe from electric shocks.