F7 Electricity

2. An apparatus that changes direct current to alternating current is a(n)
3. Which unit measures the resistance of an electric current
4. Constant and direct current that has a positive and negative pole and produces chemical changes when it passes through the tissues and fluids of the body is known as __________ current
8. Which is considered a good conductor
9. The movement of electrons from one atom to another along a conductor is called
10. The unit that measures how much electric energy is being used in one second is a(n)
11. The negative electrode of an electrotherapy device is called a(n)
13. For safety, use no more than _________ plug(s) in each outlet
14. When using ___________ current, the active electrode is the electrode used on the area to be treated
17. Electric wires can be covered with a material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n)

1. A ___________ is an extremely low level of electricity that mirrors the body's natural electrical impulses.
5. Electric ___________ refers to the flow of electricity along a conductor
6. Catalysts are substances that speed up _________ reactions.
7. A wavelength is the distance between successive peaks of ___________ waves
12. The term __________ current refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction
15. The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n)
16. The device that prevents excessive current from passing through a circuit is called a(n)