Adevice that uses electricity and magnetism to create motion is called a ,magnet, generator . in a reverse process, a device that uses motion and magnetism can be used to create light, electromagnetism, electricity

A device that uses electricity and magnetism to create motion is called a "Motor" (which converts electric energy into mechanical energy) & In a reverse process, a device that uses motion and magnetism can be used to create "Electromagnetism".

In short, 1st Blank = Motor
2nd Blank = Electromagnetism 

Hope this helps!