Week 5- Skin Care 2: Electric & HF
Small particle in nucleus that has no electric charge is known as:
neutron
Measured push or rate at which a current is being delivered is known as:
Voltage
A high frequency technique known as sparking is very useful after extractions as it can help to coagulate and heal any open lesion and has an antiseptic effect on lesions such as acne (T/F)
True
When two or more atoms are linked together, they form a molecule.(T/F)
True
Copper is an example of a conductor, which can be defined as a material that passes an electrical current.(T/F)
True
Atoms with an electrical charge are called ions.(T/F)
True
A material or element that does not easily pass an electrical current is a resistor.(T/F)
False
On the High Frequency machines in the lab (see video) the Rheostat which controls the intensity of the current is in the center of the machine and the on/off switch is on the left side of the front of the machine(T/F)
True
In certain situations, a balanced atom with fixed electrons can take (steal) or give away an electron/s and becomes an Ion. If it gains an electron, the atom takes on a positive charge. If it loses an electron it takes on a negative charge.(T/F)
False
Gauze or tissue is often used with the high frequency mushroom electrode to prevent the electrode from dragging on the skin.(T/F)
True
Electrons moving in only one direction create a DC or direct current.(T/F)
True
The term for material that easily passes an electrical current or flow of electrons is:
Conductor
When placing a high frequency electrode on the skin or removing it from the skin the esthetician's finger must be on the electrode.(T/F)
True
The high frequency machine:
uses a Tesla current
Electrodes used during high frequency treatment can be cleaned by:
neither
soaking the electrode in a gentle solution for 20 minutes
sterilization in a UV machine
Small particles in the nucleus with a positive electric charge are known as:
Proton
An atom is composed of tiny particles called electrons and larger particles called neutrons which are made up of protons and a nucleus.(T/F)
False
Electric charge that is not moving is known as:
static electricity
A piece of metal, glass, or other conductor through which current enters or leaves an electrical device is known as:
Electrode
What are the negatively charged particles that orbit the positively charged nucleus of an atom
Electron
Atom or group of atoms that has gained or lost electrons and so has an electric charge is known as:
Ion
Sometimes when using the High Frequency machine to spark a lesion, the intensity should be turned up slightly (T/F)
True
Unit that measures the rate of flow of an electric current:
Ampere
When discussing the High Frequency procedure with the client, the benefits, sensations and sounds of the machine and treatment should be outlined (T/F)
True
High frequency is used by gliding a mushroom shaped electrode over the skin to calm and soothe or by holding the electrode slightly above the skin in the area of that needs to be disinfected.(T/F)
True
An electric current is a flow of electrons along a conductor.(T/F)
True
When using the high frequency unit on a client increase the strength by turning the:
Rheostat
A high frequency current changes polarity so frequently that this stimulation produces a chemical changes which helps to penetrate products into the skin.(T/F)
False
The positively charged nucleus orbits the negatively charged electrons in the atom.(T/F)
False
What unit is used to measure a material's resistance to the flow of electric current?
Ohm
When using the High Frequency electrode to spark a lesion, you will hold the electrode just above the lesion without touching it for several seconds. In the video it is suggested to hold it there for about 3 seconds?(T/F)
True
The electrons in an alternating current, flows first in one direction, then in the reverse direction. This type of current when it alternates rapidly is called High Frequency.(T/F)
True
This is the control that regulates the strength of current:
Rheostat
High Frequency is done after your perform extractions and apply the post extraction solution as the High Frequency will ensure that the post extraction solution (Purifying Toner) penetrates deeply and prevents further breakouts.(T/F)
False
The material or element that does not easily pass an electrical current is:
Insulator
Path an electric current follows, is known as:
electric circuit
Rate at which reversal of direction occurs in alternating current is known as:
Hertz
A hydrogen atom, which has one positive proton and one negative electron, is in a state of resistance.(T/F)
False
High frequency best benefits an acne-prone skin by:
stimulating blood flow through the skin
disinfecting the skin and lesions by acting as a surface bactericidal agent
calming the skin and reducing the swelling of acne lesions
Incorrect Response
helping lesions to coagulate, heal, and dry up