| A | B |
|---|
| Material which allows electrons to flow through it easily | conductor |
| closed path through which electrons flow | circuit |
| accumulation of electric charges on an object | static electricity |
| has more than one path for current to pass through | parallel circuit |
| tendency of a material to oppose electron flow | resistance |
| Material which does not allow electricity to move easily through it | insulator |
| flow of electrons through a conductor | electric current |
| circuit has only one path for the current to pass through | series circuit |
| metal rod that directs lightning to Earth | lightning rod |
| device that detects electric charges | electroscope |
| these are usually good conductors | metal |
| magnetic poles | a magnet has two of these |
| opposite poles or charges | attract |
| like poles or charges | repel |
| made when wire is wrapped around a core | electromagnet |
| wire is wrapped around this for an electromagnet | core |
| a device containing a magnetized needle that moves freely and is used to show direction | compass |
| lines of force | The lines that form a pattern showing the size and shape of a magnetic force field |
| lodestone | a naturally magnetic mineral found at or near the earth's serface |
| magnetic field | The space around a magnet within which the force of the magnet can act |
| magnetism | A magnet's property of attracting certain materials, mainly iron and steel |
| north pole | One of the ends of a magnet where the magnetic force is strongest; it points north when the magnet moves freely |
| south pole | One of the ends of a magnet where the magnetic force is strongest; it points south when the magnet moves freely. |
