| A | B |
|---|
| attract | to pull toward |
| force | a push or pull on an object |
| magnet | any material that attracts iron and materials that contain iron |
| repel | to push away |
| magnetic pole | The ends of a magnetic object, where the magnetic force is strongest |
| magnetic field | The invisible area of magnetic force around a magnet; is circular in shape |
| magnetized | Describes an object where the atoms are all lined up so that the it can now be attracted to a magnet |
| like poles | These ends of a magnet will repel |
| opposite (unlike) poles | these ends of a magnet will attract |
| bar magnet | the type of magnet with no curve |
| compass | an instrument that shows the direction of magnetic north; aligns with Earth's magnetic field |
| magnitude | strength of a force |
| The greater the distance between magnets... | the smaller the magnitude |
| The greater the size of a magnet | the larger the magnitude |
| Electricity | A form of energy that can be changed to light, heat, or sound and can produce magnetism |
| Battery | Two or more cells that produce the source for electric current. Electricity flows from the - negative side of the battery to the positive side |
| Current | The continuous flow of electricity (electrons) through a conductor |
| Circuit | A closed path through which electricity flows |
| Load | A device that uses electricity in a circuit, also called a resistor (light bulb, motor, etc.) |
| Wire (Path) | Part of the circuit that conducts the electric current |
| Switch | A device that completes (closes) or breaks (opens) the path a current can follow in an electric circuit |
| Closed Circuit | A continuous path (one that is not broken) through which electricity can flow (also called a "complete circuit") |
| Open Circuit | A path that is broken (has an opening) through which electricity cannot flow |
| Series Circuit | An electric circuit in which the parts are connected in a single, sequential path |
| Parallel Circuit | An electric circuit having more than one path along which electric current can flow |
| Conductor | Material through which electricity moves easily; it allows electric current to flow through it in an electric circuit |
| Insulator | Material through which electricity does NOT move easily; it does NOT allow electric current to flow through it in an electric circuit |
| Static Electricity | Occurs when positive and negative electrical charges are not balanced. |
| Source | Where the electrical power comes from in a circuit. For example, a battery or household wall outlet. |
