Physics Vocab Magnetism

2. A substance with magnetic domains that are always lined up and therefore always has magnetic properties; Permanent magnets always have a magnetic field surrounding them.
4. The flow of charged particles from atoms.
5. A substance, like copper, that easily carries and electric current. When electricity runs through a conductor, a magnetic field is created.
6. A substance with magnetic domains that line up and become magnetized for a short period of time after being held in a magnetic field.
7. The combined effects of electricity and magnetism.
9. The space around a magnet, in which magnetic force is exerted.
11. A machine that produces electric current by rotating a coil within a stationary magnetic field.
13. To pull together - When opposite poles are put near each other, attraction occurs.
16. A sensitive current-indicating instrument.
17. A group of atoms in a material that behaves like a small magnet. In a substance that is not magnetized, domains are pointed in random ways. In magnets, all domains are lined up in the same direction.
19. Diamagnetic materials work very differently from ferromagnetic and paramagnetic metals, as they respond to magnets in an opposite way. Common diamagnetic materials include gold, silver, and lead.
20. The rate at which energy is transferred.
21. A natural force of attraction or repulsion of magnetic materials, caused by the lining up of their atoms.

1. Materials that are weakly attracted to a magnetic force. This attractive force is approximately a million times weaker than the force attracting ferromagnetic metals. Common paramagnetic metals include copper and aluminum.
3. Inducing voltage by changing the magnetic field around a conductor.
8. An object that attracts iron and other magnetized objects; Something that can attract iron and has an invisible magnetic field around it.
10. The induced voltage in a coil is proportional to the product of the number of loops, the cross-sectional area of each loop, and the rate at which the magnetic field changes within those loops.
12. A current carrying coil of wire.
14. To push away - When two similar magnetic poles are near each other, they repel one another.
15. A term used to describe materials that are strongly attracted by magnetic force; A term used to describe objects with magnetic qualities often due to their iron content. Common ferromagnetic metals include iron, nickel, and steel.
18. a device for increasing or decreasing voltage through electromagnetic induction
20. The opposite ends of a magnet; The poles are the strongest areas of the magnet.