Electromagnetic Forces

2. The _________ iron, nickel, and cobalt are ferromagnetic.
5. A ________________ material can be added to a solenoid to make the magnetic field stronger.
7. The relationship between electricity and magnetism is called _____________
8. To turn the magnetic field off or on, simply turn the _____________ off or on.
10. The magnetic field of an ____________ increases when the number of coils, closeness of coils, or current increases.
12. A ____________ is a coil of wire with a current running through it.
14. In a solenoid the magnetic field is strengthened in the __________.
16. Electromagnets strengthen a magnetic field by running a current through ___________ wire.
17. He placed several different _____________ near a wire and found out that they changed direction when current passed through the wire.

1. Hans Christian _____________ was the scientist who first discovered electromagnetism during a class he was teaching.
3. You can get the electromagnetic to drop the metal beams by turning _____ the current.
4. To determine the direction of a magnetic field based on the direction of current through a straight wire, you can use what is known as the _____________ rule
6. The magnetic field's direction depends on the direction of the _____________.
9. The magnetic field of this crane is actually generated by an _____________current.
11. Winding the coils together produces a stronger ___________ field.
12. If current is increased, the magnetic field becomes _____________.
13. Increasing the current through the solenoid wire __________ the magnetic field.
15. One end of a solenoid acts like the __________ pole of a magnet.