Chapter 9 Vocabulary

4. the region around a charged object where the object's electric force is e3xerted on other charged objects.
8. any material that attracts iron and materials that contain iron.
10. a magnet created by wrapping a coil of wire with a current running through it around a core of material that is easily magnetized.
12. the force between charged objects.
13. a buildup of charges on an object.
14. a force produced when magnetic poles interact.
15. the continuous flow of electrical charges through a material.
18. a device that increases or decreases voltage, which often consists of two separate coils of insulated wires wrapped around an iron core.
19. a tiny particle that moves around the outside of the nucleus of an atom.

1. a coil of wire with a current.
2. the force of attraction or repulsion of magnetic materials.
3. the process of generating an electric current from the motion of a conductor through a magnetic field.
5. a device that uses an electromagnet to detect small amounts of current.
6. the region around a magnet where the magnetic force is exerted.
7. a material that allows electric charges to flow.
9. a device that transfers mechanical energy into electrical energy.
11. the relationship between electricity and magnetism.
16. a device that transforms electrical energy to mechanical energy.
17. the ends of a magnetic object, where the magnetic force is strongest.