1.A______ is a region of space in which a magnetic material ( such as iron) world experience a force. 2. the closer a magnetic material is to a magnetic field the______ the force experienced. 3. a magnetic field can be shown in a______.4. in a field diagram, the______ the field lines the stronger the magnetic field. 5. in a scale diagram, the arrows on the field lines point out of the__________. 6. in a field diagram, the hours on the field lines point into the___________. 7. there's a magnetic field around a________.( permanent magnet). 8. there is also a magnetic field around a __________. 9. in a field diagram, the magnetic field around a current-carrying wire is shown as a series of_________. 10. the magnetic field around a current-carrying wire can be made stronger by winding the wire into a ______. 11. when a current-carrying wire is want into a coil it is called a ______. 12. a coil of wire carrying a current has the _______ as a bar magnet . 13. the magnetic field can be made stronger around a coil of wire carrying a current by ________. 14. the magnetic field can be made stronger around a coil of wire by using _______. 15. the magnetic field can be made stronger around a coil of wire carrying a current by adding a ______ through the middle of the coil. 16. a coil of wire carrying a current with a soft iron core in the middle is called an ________. 17. the magnetic field around al electromagnet can be switched on or off by ________. 18. an electromagnet is used inside an ________. 19. an electromagnet is used in _______ for lifting steel. 20. an electromagnet is used in __________ for producing sound .





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