Book+2,3.2

**Quiz**
1. C,F,H 2.A,B 3.D,E,G 4.eletric motor 5.mechanical energy 6.galvanometer 7.energy 8.eletrical energy

**Study Guide**

 * 1.current**
 * 2.armature**
 * 5.eletrical energy is transformed into mechanical energy**
 * 11.armature**
 * 14.energy**
 * 16.FALSE-eletric motor**
 * 18.FALSE-electrical energy**
 * 25.the magnetic field of the electromagnetic s coil interacts with the permanent magnets field causing the loops of wire and the attached pointer to rotate**
 * 26.Its connected to a battery and has a commentator so its an electric motor. It uses current from a battery to turn wire loop in magnetic field. A commentator reverses the current in a loop in a loop after each .5 turn so it turns continuously**
 * 27.Motor wont work because the magnetic field is produced by 2 like poles Each .5 turn of the loop will be equally pushed or pulled by the poles so the loop wont turn the motor could be made to work by using 2 unlike magnetic poles**