Across
- 1. A device that points to North seeking poles and can be used to find the direction of a magnetic field
- 6. Coil of wire
- 9. The variable you measure in an experiment
- 11. The ... the magnetic field lines are, the stronger the field
- 12. Electromagnet cores are usually made of...
- 13. Where the magnetic field around a bar magnet is strongest
- 14. A magnetic compound
- 15. Decreasing the ... will make an electromagnet's field weaker
- 17. Opposite poles will ... each other
Down
- 2. Using a more ... material for an electromagnet core will make its magnetic field stronger.
- 3. The direction magnetic field lines point
- 4. A substance made of more than one element chemically bonded
- 5. The variable you change in an experiment
- 7. A magnetic element
- 8. A magnet can only attract magnetic materials and not ... them
- 10. Increasing the number of turns in a solenoid increases the strength of an electromagnet
- 14. Adding more turns to the electromagnet will make its magnetic field...
- 16. The ... has a permanent magnetic field.