102.9-102.10 Electricity Test WK 2 Flashcards
Light, Heat, chemical, and magnetic changes are all produced by what?
Electricity
Since Silver and copper transmit electricity, what are they called?
Conductors
What are materials that do not allow a current to pass through them are called what?
Insulators
What type of material does not allow a current to pass through it?
Alcohol
An amp is a unit of electric what?
Strength
A volt is a unit of electric what?
Pressure
A current in which electrons move at an even rate and flow in only one direction is called what?
Direct Current
Dropping an electrical appliance into water, making it a foreign conductor, causes a what?
Short Circuit
What device breaks the flow of current when an overload occurs?
Circuit Breaker
The appliances of a specific electric current or piece of equipment for corrective and therapeutic benefits on the skin is called what?
Electro therapy
When performing an electro therapy procedure, what current conductor is used to bring the current from the appliance to the client’s skin?
Electrode
When using galvanic current, what precautions must a salon professional take in order to prevent injury to the client?
Do not use over an area with many broken capillaries
The direct current used in electro therapy treatments is what?
Galvanic
The electrode that is negatively charged during an electro therapy treatment is know as what?
Cathode
Which electro therapy treatment can cause sebum to be broken down or blackheads to be liquefied, as in deep-pore cleansing?
Desincrustation
What temporary effect will a negative electrode pole produce when applying galvanic current during an electrotherapy treatment?
Increases Blood Flow
What is not a temporary effect of the positive pole of galvanic current?
Softens Tissues
EMS is an alternating current used chiefly during scalp and facial massage to cause what?
Muscle Contractions
An alternating current that can be adjusted to different voltages to produce heat is what?
High-frequency
When the salon professional applies the electrode directly to the client’s scalp or face when using high-frequency current, which method is being used?
Direct application
If the client is holding the active electrode while the salon professional manually stimulates that area being treated, what method of high-frequency current is being used?
Indirect application
Which of the following actions will produce a mild, stimulating sensation while using high-frequency current?
Slightly separating the electrode from the skin
Treatment with light rays or waves is called what?
Light therapy
What is the longest wave length?
Infrared rays