Term
|
Definition
| two areas of concentrated magnetic force on a magnet |
|
|
Term
|
Definition
| the strengths and directions of the electrical force at every point around the electrode |
|
|
Term
|
Definition
| show the direction the electrical force will move a positive charge |
|
|
Term
|
Definition
| used to show the strenth and direction of magnetic forces;the lines of force point in the direction in which the magnetic forces act on a north magnetic pole |
|
|
Term
|
Definition
| strongly attracted to magnets |
|
|
Term
|
Definition
| slightly attrected to magnets |
|
|
Term
|
Definition
| microscopic regions of materials that may be lined up to produce a magnetic field of force |
|
|
Term
|
Definition
| materials that are naturally magnetic |
|
|
Term
|
Definition
| the temperature at which a permanent magnet loses its magnetic field |
|
|
Term
|
Definition
| point at the "top of the world" where the axis of the Earth spins |
|
|
Term
|
Definition
| point in Canada where the earth's magnetic field is connected |
|
|
Term
|
Definition
| coiled wires used to form a magnet |
|
|
Term
|
Definition
| a switch used to turn solenoids on or off |
|
|
Term
|
Definition
| a device that uses magnetic fields to convert mechanical energy into electrical energy |
|
|
Term
|
Definition
| an electric current that regularly changes the direction of its flow |
|
|
Term
|
Definition
| the unit of frenquency;one cycle per second |
|
|
Term
|
Definition
| an electric current that flows in only one direction |
|
|
Term
|
Definition
| a series of coils that uses induction to produce a higher voltage |
|
|
Term
|
Definition
| a magnet made from special materials and kept at extremely low temperatures |
|
|
Term
|
Definition
| the rotating electromagnet in an electric motor |
|
|
Term
|
Definition
| In order to produce an electrical current, what must a magnet be doing? |
|
|
Term
|
Definition
|
|
Term
|
Definition
| resistance is measured in |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a series of coils that uses induction to produce a lower voltage |
|
|
