Electrical Principles

2. a microscopic particle that cannot be broken into smaller pieces without losing its elemental properties.
5. a group of one type of atom.
6. a branch of physics that deals with the interaction of electricity and magnetism
10. Free electron movement and electrical flow result from a difference in positive and negative charges between atoms.
13. a substance composed of molecules containing two or more elements.
14. articles carrying neither a positive or negative charge, but still having mass and occupying space, that are located in the nucleus.

1. a substance that resists or stops the flow of free electrons.
3. anything in the universe that occupies space and has mass (weight).
4. positively charged particles that are located in the nucleus of the atom.
7. an atomic force that can attract or repel ferrous (iron-containing) substances through space, air, or solid.
8. a group of two or more atoms bonded together.
9. negatively charged particles that circle in specific orbits around the center, or nucleus, of the atom
11. a substance that allows the flow of free electrons.
12. the process of creating electricity in a wire by passing the wire through a magnetic field.