1. Vocabulary Mini Review Magnetism

2. A(n) ___________ can be made by coiling a wire around an iron nail and connecting it to current. Electromagnet

3. A _________ transformer is used to increase voltage. Step Up

4. A _________ transformer is used to decrease voltage. Step Down

5. __________ ________ is the process of creating an electric current by moving a magnet through a loop of wire. Electromagnetic Induction

6. The _________ ________ is the area surrounding a magnet that exerts a magnetic force. Magnetic Field

7. _________ ________ is current that travels in only one direction. Direct Current

8. _________ ________ is current that changes direction. Alternating Current

9. A ________ is used to increase and decrease voltage. Transformer

10. A ________ magnet retains its magnetic properties for long periods of time. Permanent

11. A ________ converts mechanical energy into electrical energy. Generator

12. An __________ ________ converts electrical energy into mechanical energy. Electric Motor

13. Household voltage in the U.S. is _____ volts. 120

14. What type of current is produced from a dry cell battery? Direct Current

15. What type of current is produced from power lines? Alternating Current

16. Where is the magnetic field the strongest? At the Poles

17. What happens when a North pole of one magnet is brought near the North pole of another magnet? They Repel

18. Changing the _______ of an electromagnet changes both the strength and direction of the current. Current

19. What do the electrons in a magnet look like? They are Aligned

20. What 3 metals can be made into magnets? Iron, Cobalt & Nickel

21. What causes the Earth’s magnetic field? Molten Iron & Nickel in the Core