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Electricity Chapter
terms on magnetism and electricity.
| Question | Answer |
|---|---|
| Magnetic poles that are alike | repel each other. |
| The region around a magnet where the magnetic force is exerted | magnetic field. |
| A complete path through which electric charges can flow | electric circuit |
| A material that allows the charge of an electric current to move freely through | conductors |
| A solenoid with a ferromagnetic core | electromagnet |
| The ends of a magnet, regardless of its shape,are called? | magnetic poles. |
| How can a magnet's magnetism be destroyed? | by heating it. |
| A device that uses electrical energy as it interferes with the flow of current | resistor |
| A current-carrying coil of wire with many loops | solenoid |
| When placed near each other, unlike poles will? | attract |
| This type of material shows strong magnetic effects. Example is iron. | ferromagnetic |
| Has a negative charge | electrons |
| Has a positive charge | protons |
| A material in which charges are not able to move freely. | insulator |
| how can the strength of an electromagnet be increased? | increase current, increase number of loops,wind the loops closer, or use a stronger ferromagnetic material. |
| The smallest particle of an element that has the properties of that element. | atom |
| All complete circuits must have what four parts? | a source, the resistor, a path, and a switch. |
| A material that has no electrical resistance | superconductor |
Created by:
crumsey
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