CH 17

1. supply A source of electrical energy, such as a battery or an engine-driven generator.
5. the electrical force, or pressure, that pushes free electrons and causes current in a circuit.
6. the opposition to free electron flow in a circuit.
11. component a more modern solid-state device that does not use moving parts for operation.
12. a substance that allows the flow of free electrons.
15. component a conventional device that uses electricity to do work.
17. an atomic force that can attract or repel substances through space, air, or solid matter.
19. anything in the universe that occupies space and has mass (weight).
20. A device that uses the electrical energy.
21. a branch of physics that deals with the interaction of electricity and magnetism.
25. center of an atom.
26. the process of creating electricity in a wire by passing the wire through a magnetic field.
28. the number of cycles per second
30. electrically energized magnet
31. charge excess protons
32. made up of electrons, protons, and neutrons.
33. a group of two or more atoms bonded together.
35. Particles carrying neither a positive or negative charge, but still having mass and occupying space that are located in the nucleus.
36. measure of voltage
37. a substance that resists or stops the flow of free electrons.
38. electron extra electron

1. difference Also called "electrical force or voltage" pressure that pushes free electrons and causes current in a circuit.
2. the movement of free electrons from one atom to another.
3. discharge This will result if a wire has a negative charge on one end and a positive charge on the other end.
4. wave The curve that represents alternating current in a basic circuit.
7. circuit closed electrical path consisting of the basic components needed to utilize the flow of electrical energy.
8. force Another name for voltage
9. the rate of electron flow in a circuit.
10. a substance composed of molecules containing two or more elements.
13. An invisible magnetic field
14. current electron flow in alternating directions.
16. field exists between the poles of a magnet.
18. a group of one type of atom.
22. one complete positive curve and one complete negative curve form this.
23. current electron flow in one direction only.
24. the number of cycles per second
27. Measure of resistance
29. Negatively charged particles that circle in specific orbits around the center of the atom.
31. Positively charged particles that are located in the nucleus of the atom.
34. charge excess electrons