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Eberhard Sci. Ch. 7
Eberhard Science Ch. 7 Magnets
| Question | Answer |
|---|---|
| Name several different types of magnets. | bar, horseshoe, ceramic, plastic, donut |
| What are magnetic poles? | the ends of the magnets where the magnetic force is the strongest |
| What does repel mean? | to push away |
| Which poles repel? | Like poles (north-north and south-south) |
| What does attract mean? | move toward |
| Which poles attract? | opposite (north-south) |
| What is an electromagnet? | a temporary magnet formed when an electric current passes through an insulated wire that is wrapped around an iron core |
| Name 3 factors that affect the strength of an electromagnet. | number of coils, voltage of battery, number of batteries, thickness (diameter) of the wire, thickness (diameter) of the core |