Term
Small doses of ultraviolet light may help the body produce:
A. Vitamin D |
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Definition
Which of the following is NOT a way for heat to be transferred from one object to another?
A. phoresis |
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Term
When using ultraviolet rays, make sure you and your client wear:
A. protective eyewear |
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Definition
Since silver and copper transmit electricity, they are called:
A. conductors |
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Term
An ampere is a unit of electric:
a. strength |
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Definition
Tesla, a high frequency current is known as the:
A. Violet ray |
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Term
Light, heat, chemical and magnetic changes are all produced by:
A. electricity |
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Definition
A unit of electrical resistance is called a(n):
A. ohm |
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Term
A volt is a unit of electric:
A. pressure |
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Definition
A salon owner wants to mimic natural sunlight as closely as possible in the salon reception area. Which type of light would most likely be used to accomplish this requirement?
A. incandescent |
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Term
Which type of current is an alternating current with a mechanical effect to help produce muscle contractions?
A. Sinusodial |
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Definition
How many millamperes equal one ampere?
A. 1000 |
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Term
The longest wavelengths in the visible spectrum are:
a. red rays |
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Definition
An alternating current which can be adjusted to different voltages to produce heat is:
A. high frequency |
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Term
Which type of light can be broken into its individual wavelengths by a prism?
A. combination |
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Definition
Which of the following benefits is derived from UV light?
A. small doses tan the skin |
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Term
Materials that do not allow electricity to flow through them are called:
A. insulators |
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Definition
The direct current used in electrotherapy treatments is:
A. Galvanic |
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Term
Materials such as glass, rubber, or paper around a conductor that does not allow current to pass through it is called a(n):
A. insulator |
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Definition
30% of sunlight is composed of invisible rays beyond red, which are called fluorescent.
A. False |
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Term
The wavelengths that produce violet are the shortest in the visible spectrum.
A. True |
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Definition
If a fire results from an overload of an electric circuit, it is recommended that water is put on the circuit.
A. false |
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Term
Before resetting a circuit breaker, it is recommended that your turn off all appliances connected to the circuit.
A. True |
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Definition
Two kinds of light in the salon produce "white light": fluorescent light and prism light.
A. False |
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Term
Two common sources of electric current are batteries and volts.
A. false |
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Definition
When a blow dryer is on and air begins to flow, you have an example of a closed circuit.
A. true |
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Term
A fire can occur if 4 or 5 appliances are plugged into one extension cord.
A.True |
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Definition
Incandescent light normally produces redder tones and warmer casts in the objects it lights.
a. True |
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Term
One way to prevent electric shocks in the salon is to make sure all electrical cords are free of tangles and knots.
A. True |
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Definition
The four types of currents used in electrotherapy are Galvanic, Faradic, Sinusoidal and direct.
A. False |
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Term
When using Tesla Current, electrodes can touch each other during the procedure.
a. false |
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Definition
Any client with a medical condition should always consult with his or her physician first before receiving electrotherapy.
A. True |
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Term
The portion of the electromagnetic spectrum humans can see is known as __________rays.
A. visible |
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Definition
The resistance to the motion of the electrons through a conductor is the Ohm's___________.
a. rating |
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Term
The type of electrical current is which electrons flow first in one direction, then in the other is ___________ current.
A. alternating |
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Definition
If a cream is used during scalp or other high frequency treatments, it is required that the cream does not contain any___________________.
A. alcohol |
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Term
When using ultraviolet light for light therapy on the scalp, place the lamp______________to____________inches from the area.
A. 20 to 30 |
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Definition
A shock that passes through the nervous system is a ________________shock.
A. general |
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Term
Most of the electricity you use consists of a flow of tiny, negatively charged particles called ___________.
A. electrons |
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Definition
An electric current travels on a closed path, called a ___________through which the electrons travel.
a. Circuit |
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Term
8% of natural sunlight is composed of invisible rays called ______________rays.
A. ultraviolet |
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Definition
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