Electricity and Magnetism

2. electromagnets are made stronger by increasing the number of these
3. field area around a magnet that can attract objects
6. negatively charged particles that are responsible for current
12. substances through which electricity cannot flow
15. complete circular path that electricity flows through
16. also known as volts, it is the measure of electrical potential difference
17. a magnetic substance with atomic symbol Co
18. made of two or more cells; produces electricity as a result of a chemical reaction
19. used to measure the potential difference(voltage)
22. the measure of resistance between two points in a conductor
23. also known as amps, this is the measure of current
24. this type of circuit has only one path

1. flow of electrons through a conductor
4. one of three materials that is magnetic atomic symbol Fe
5. type of electricity that results from two objects being rubbed together; sits on the surface of objects
7. a two terminal device that stores electrical energy by accumulating electrical charges
8. part of the circuit that can turn parts on and off
9. restricts that movement of electricity in a circuit
10. strongest part of the magnet
11. substances through which electricity an flow
13. This type of circuit has more than one path for the electrons
14. a magnetic substance with the atomic symbol of Ni
15. indicates direction based on earth's magnetic poles
20. a device comprised of a coil of wire, the housing and a moveable plunger (armature). When electrical current is introduced, a magnetic field forms around the coil which draws the plunger in; converts electrical energy into mechanical work.
21. Used to measure the flow of electrons