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Stack #4604522
| Question | Answer |
|---|---|
| What is magnetic force? | A force that can attract or repel objects at a distance. |
| What happens when like magnetic poles are near each other? | They repel. |
| What happens when opposite magnetic poles are near each other? | They attract. |
| What is a magnetic field? | The space around a magnet where magnetic forces act. |
| What do magnetic field lines show? | The direction and strength of the magnetic field. |
| How does distance affect magnetic force? | Magnetic force is stronger when objects are closer together. |
| What is potential energy? | Energy stored in an object or system. |
| What is kinetic energy? | Energy and object has when it is moving. |
| What happens to energy when a magnet moves against a magnetic force? | Energy is stored as potential energy in the magnetic field. |
| What is an electromagnet? | A magnet whose magnetic field is produced by an electric current. |
| What happens to stored magnetic potential energy when a magnet is released? | It is converted into kinetic energy. |
| How can you tell where a magnetic field is strongest? | Where the magnetic field lines are closest together. |
| What happens to an electromagnet when the electric current is turned off? | The magnetic field disappears. |
| What does it mean to transfer energy? | To move energy from one object or system to another. |
| What is a system? | A group of interacting parts that form a whole. |
| Repel means... | To push objects away from each other. |
| Attract means... | To pull objects toward each other. |