chapter 8

Question 1

examples of good insulators

Answer 1

rubber, silk, wood, cement, glass

Question 2

alternating current

Answer 2

2 or 3 pronged cord (hair straightener)

Question 3

volt-

Answer 3

unit that measures the pressure or force that pushes the flow of electrons forward through a conductor,

Question 4

Ampere

Answer 4

unit that measures the amount of an electric current (the number of electrons flowing through a conductor

Question 5

Ohm

Answer 5

unit that measures the resistance of an electric current

Question 6

watt

Answer 6

measurement of how much electric energy is being used in 1 second

Question 7

kilowatt

Answer 7

1000 watts

Question 8

guidelines of safeuse of eletrical equipment

Answer 8

All the electrical appliances you use should be UL certified (Figure 8–9).* Read all instructions carefully before using any piece of electrical equipment.* Disconnect all appliances when not in use.* Inspect all electrical equipment regularly.* Keep all wires, plugs, and electrical equipment in good repair.* Use only one plug to each outlet; overloading may cause the circuit breaker to pop. If more than one plug is needed in an area, use a power strip with a surge protector (Figure 8–10).* Unplug electrical devices or connections that get hot. You and your client should avoid contact with water and metal surfaces when using electricity; do not handle electrical equipment with wet hands.* Do not leave your client unattended while he or she is connected to an electrical device.* Keep electrical cords off the floor and away from people’s feet; getting tangled in a cord could cause you or your client to trip.* Do not attempt to clean around electric outlets while equipment is plugged in.* Do not touch two metal objects at the same time if either is connected to an electric current.* Do not step on or place objects on electrical cords.* Do not allow an electrical cord to become twisted; this can cause a short circuit.* Disconnect appliances by pulling on the plug, not the cord.* Do not attempt to repair electrical appliances unless you are qualified. * If you have a problem with electrical wiring or an electrical device or appliance tell your supervisor immediately, take the device in for repair, or call a qualified electrician or repair representative to resolve the issue

Question 9

what color wire is ANODE and CATHODE

Answer 9

ANODE is red
cathode is black

Question 10

EFFECTS OF GALVANIC CURRENT

Answer 10

POSITIVE POLE (ANODE)
cataphoresis
produces acidic reactions
closes the pores
soothes the nerves
decreases blood supply
contracts blood vessels
hardens and firms tissues

NEGATIVE POLE (CATHODE)
anaphoresis
produces alkaline reactions
opens pores
stimulates and irritates the nerves
increases blood supply
expand blood vessels
softens tissues

Question 11

benefits of high tesla frequency

Answer 11

Stimulates blood circulation* Increases elimination and absorption* Increases metabolism* Improves germicidal action* Relieves congestion

Question 12

what light is a combo of all the visible rays of the spectrum

Answer 12

white light

Question 13

Colors of LED light and its purpose

Answer 13

blue light has been shown to reduce acne, and red light increases circulation and improves the collagen and elastin production in the skin. Yellow light has been shown to reduce swelling and inflammation, and
green light reduces hyperpigmentation