1.
Electricity is a from of energy that when in motion exhibits magnetic, chemical and ? effects.
Correct Answer
B. Thermal
Explanation
Electricity, when in motion, exhibits magnetic, chemical, and thermal effects. This means that it can generate heat or be converted into heat energy. Thermal energy is a form of energy that is associated with the motion of particles within a substance. When an electric current flows through a conductor, it can produce heat due to resistance in the material. Therefore, the correct answer is thermal.
2.
An insulatior or non conductor is a substance that does not ealily transmit electricity. Examples would be rubber, glass, wood, silk, and
Correct Answer
C. Cement
Explanation
An insulator or non-conductor is a substance that does not easily transmit electricity. Cement is included as an example of an insulator because it does not conduct electricity well.
3.
An conductor is any substance that easily transmits electricity. which one is a good conductor.
Correct Answer
B. Metals
Explanation
Metals are good conductors of electricity because they have a high number of free electrons that can easily move through the material when an electric current is applied. This allows the electricity to flow easily without much resistance. In contrast, concrete, mountain rocks, and wooden fence poles do not have a high number of free electrons and therefore do not conduct electricity as well as metals.
4.
Two kinds of electric current are direct current and
Correct Answer
C. Alternating current
Explanation
Alternating current is the correct answer because the question is asking for the other kind of electric current besides direct current. Alternating current is a type of electric current that periodically reverses direction, unlike direct current which flows in only one direction. Therefore, it is the appropriate choice to complete the statement.
5.
What is the apparatus that changes direct currrent to alternating current called
Correct Answer
D. Converter
Explanation
The apparatus that changes direct current to alternating current is called a converter. A converter is an electrical device that converts the input direct current into an output alternating current, allowing for the transfer of electrical power between different systems or devices. It is commonly used in various applications such as power electronics, renewable energy systems, and electric vehicles.
6.
An applicator for directing the electric curent from the machine to the client's skin is called an
Correct Answer
C. Electrode
Explanation
An electrode is a device that conducts electricity and is used to deliver electric current from a machine to the client's skin. It is commonly used in various medical and cosmetic procedures, such as electrotherapy and electrolysis. The electrode acts as a connector between the machine and the client's skin, allowing the flow of electric current to achieve the desired therapeutic or cosmetic effect.
7.
The positive electrode of electrotherapy devices is called
Correct Answer
B. Anode
Explanation
The positive electrode of electrotherapy devices is called the anode. In electrotherapy, the anode is the electrode through which the positive current flows into the body. It is responsible for attracting negatively charged ions and promoting various therapeutic effects such as pain relief and tissue healing. The anode is commonly used in galvanic electrotherapy, where direct current is applied to the body for therapeutic purposes.
8.
The process of forcing liquids into the tissues from the negative toward the positive pole is called
Correct Answer
D. AnapHoresis
Explanation
Anaphoresis is the process of forcing liquids into the tissues from the negative toward the positive pole. It is a technique commonly used in electrotherapy, where an electrical current is applied to the body to deliver medication or other substances into the tissues. This process can be used to treat various conditions, such as inflammation, pain, and muscle spasms. Unlike desincrustation, iontophoresis, and cataphoresis, which involve the movement of substances in the opposite direction, anaphoresis specifically refers to the movement of liquids from the negative to the positive pole.
9.
The process of introducing water soluable products into the skin with the use of electric current is called
Correct Answer
A. IontopHoresis
Explanation
Iontophoresis is the correct answer because it refers to the process of introducing water-soluble products into the skin using electric current. This technique is commonly used in skincare treatments to enhance the absorption of certain substances into the skin, such as medications or serums. By applying a low-level electric current, iontophoresis helps to push the products deeper into the skin, allowing for better penetration and effectiveness.
10.
Forces acidic substances into deeper tissues using galvanic current from the positive toward the negative pole.
Correct Answer
C. CatapHoresis
Explanation
Cataphoresis is a process that uses galvanic current to force acidic substances into deeper tissues. The positive pole is used to attract the acidic substances and push them towards the negative pole. This technique is commonly used in skincare treatments to deliver beneficial ingredients deep into the skin, helping to improve its condition and appearance.
11.
Never use negative galvanic current on skin with broken capillaries or pustular acne conditions or on a client with
Correct Answer
C. High blood pressure or metal implants
12.
Tesla high frequency current should not be used on clients who are pregnant, suffer from epilepsy, who have high blood pressure, a pacemaker, metal implants or ?
Correct Answer
B. Asthma
Explanation
High frequency current is a type of electrical current that is commonly used in beauty treatments. It is not recommended to use high frequency current on clients who have certain medical conditions, such as asthma. This is because asthma is a respiratory condition that can be triggered or worsened by electrical stimulation. Therefore, using high frequency current on a client with asthma could potentially exacerbate their symptoms and cause discomfort or harm.
13.
Positive pole (anode) includes
Correct Answer
A. Decreaces blood supply
Explanation
The positive pole (anode) is known to decrease blood supply. When the positive pole is applied to the body, it causes vasoconstriction, which is the narrowing of blood vessels. This constriction reduces the flow of blood to the area, resulting in a decrease in blood supply.
14.
Negative pole (cathode) using galvanic current from the posittive toward the negative pole forces ?
Correct Answer
C. Acidic substances into deeper tissues
Explanation
The correct answer is "acidic substances into deeper tissues." When galvanic current is applied from the positive pole (anode) to the negative pole (cathode), it causes chemical changes to occur as it passes through the tissues. These chemical changes result in the introduction of acidic substances into deeper tissues.
15.
Desincrustation is a process used to treat
Correct Answer
D. Acne
Explanation
Desincrustation is a process used to treat acne. It involves the use of a galvanic current to soften and liquefy sebum and other impurities in the pores, making it easier to remove them. This treatment can help to unclog pores, reduce inflammation, and improve the overall appearance of the skin.
16.
What produces moist uniform heat that can be applied to the head or face
Correct Answer
C. Steamer or vaporizer
Explanation
A steamer or vaporizer produces moist uniform heat that can be applied to the head or face. Ultraviolet rays are not used for producing heat and Tesla high frequency current is not typically used for this purpose either. Cold rags do not produce heat at all. Therefore, the correct answer is steamer or vaporizer.
17.
Infrared rays make up what percent of natural sunlight
Correct Answer
B. 60
Explanation
Infrared rays make up 60% of natural sunlight. Infrared rays are a type of electromagnetic radiation that has longer wavelengths than visible light. They are not visible to the human eye but can be felt as heat. Sunlight consists of various types of electromagnetic radiation, including infrared rays. The given answer suggests that 60% of the energy in natural sunlight is made up of infrared rays.
18.
Ultraviolet rays make up what percent of natural sunlight
Correct Answer
D. 5
Explanation
Ultraviolet rays make up a very small percentage of natural sunlight, approximately 5%. This is because sunlight consists of a broad spectrum of electromagnetic radiation, including visible light, infrared rays, and ultraviolet rays. While ultraviolet rays are responsible for causing sunburn and other skin damage, they make up only a small fraction of the overall sunlight.
19.
What are used to make reactions happen more quickly
Correct Answer
C. Catalysts
Explanation
Catalysts are substances that are used to increase the rate of a chemical reaction without being consumed in the process. They work by providing an alternative pathway for the reaction to occur with lower activation energy. This lowers the energy barrier for the reaction, allowing it to happen more quickly. Unlike other options such as a vibrator, heat lamps, or electromagnetic radiation, catalysts specifically facilitate chemical reactions and are not consumed or altered in the process.