A | B |
electric charge | when matter has an overall positive charge or a negative charge |
neutral | no electrical charge |
repel | to push away |
attract | to pull toward |
electric force | the push or pull of charged objects on each other |
conductor | electrical charges can move easily |
insulator | electric charges cannot move easily |
static discharge | the transfer of particles that have an electric charge between objects that are not touching |
natural magnet | not made magnetic by people |
permanent magnets | magnetism cannot be turned on and off |
electromagnet | magnets that can be turned on and off by an electric current |
magnetic pole | the point where the magnetic force is strongest |
magnetic field | the space where the force of a magnet acts |