C48 - HW2 Study Guide 2 Chemistry:Electricity

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Name: ______________________ Class: _________________ Date: _________ ID: A 1 Esthetician SG 2- Chemistry/Electricity Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Why should beauty professionals study and have a thorough understanding of chemistry? a. Because every product used in beauty and wellness contains some type of chemical. b. Because it is unrelated to the safe operation of a salon, spa, or barbershop. c. Because clients often quiz beauty professionals on this important knowledge. d. Because chemistry experiments are often regular practice at salons, spas, and barbershop.. ____ 2. The effects of cosmetics and beauty products are based on which of the following? a. How the body reacts to chemicals b. How friends and family members react to a new look c. How pleased the beauty professional is with the results d. How favorably the new styles compare with the old ____ 3. Which of the following is TRUE of creams, lotions, masks, and makeup? a. They never contain chemicals. b. They only contain chemicals if they are not made from natural sources such as plant extracts. c. They only contain chemicals if they come from ingredients manufactured in a laboratory. d. They contain chemicals whether they come from natural sources or from ingredients manufactured in a laboratory. ____ 4. Any substance that occupies space and has weight is ______. a. a chemical b. matter c. potentially dangerous d. a beauty product ____ 5. Everything you can touch and everything you can see is matter EXCEPT ______. a. liquids and gases b. chemicals and powders c. light and electricity d. living and once-living bodies ____ 6. Which of the following is the simplest form of chemical matter? a. a liquid b. a gas c. an element d. a chemical ____ 7. How many elements are known to science today? a. 118 b. 108 c. 81 d. 18 Cosm 48 (1610) 9-7-23 Janet Martinez Lopez *Answers are highlighted*

Name: ______________________ ID: A 2 ____ 8. Of all the elements known to science today, how many occur naturally on Earth? a. 18 b. 19 c. 89 d. 98 ____ 9. ______ are the basic units of matter. a. Electrons b. Neutrons c. Protons d. Atoms ____ 10. Which of the following is an example of a compound molecule? a. the oxygen we breathe b. the ozone layer c. common table salt d. pure nitrogen ____ 11. Which of the following is an example of a chemical change? a. ice melting to become water b. water evaporating into the air c. exposed metal rusting d. liquid nail polish hardening ____ 12. Which of the following is TRUE when salt is dissolved into water? a. Water is the solute and salt is the solvent. b. Salt is the solute and water is the solvent. c. Salt and water are both solutes. d. Salt and water are both solvents. ____ 13. Which of the following is TRUE of all liquids? a. They are miscible. b. They are immiscible. c. They are both miscible and immiscible. d. They are either miscible or immiscible. ____ 14. When immiscible liquids are combined, they form ______. a. solutions b. suspensions c. miscible liquids d. stable mixtures ____ 15. What is a solute? a. a stable physical mixture of two or more substances b. a substance that dissolves a solvent and makes a solution c. a substance that is dissolved in a solution d. a liquid not capable of being mixed to form a stable solution Janet Martinez Lopez

Name: ______________________ ID: A 3 ____ 16. What is a solvent? a. a stable physical mixture of two or more substances b. a substance that dissolves a solute and makes a solution c. a substance dissolved into a solution d. a liquid not capable of being mixed to form a stable solution ____ 17. Which of the following is TRUE of solutions? a. They are immiscible. b. They are surfactants. c. They are usually a solid color. d. They are stable mixtures. ____ 18. Which of the following were the first surfactants? a. motor oils b. cooking oils c. soaps d. nail polishes ____ 19. The overexposure principle is used to describe how overexposure determines ______. a. tolerance b. toxicity c. safety d. immunity ____ 20. pH is an abbreviation of ______. a. potential hydrogen b. probable H 2 O c. pure hydrochloric acid d. productively high ____ 21. Why is understanding pH important for the beauty and wellness professional? a. Because it is essential for passing all exams. b. Because employers require it. c. Because it affects the hair, skin, and nails. d. Because it is directly related to income potential. ____ 22. The pH scale is used to measure ______. a. acidity and alkalinity b. overexposure and underexposure c. levels of carbon dioxide d. levels of oxygen ____ 23. All acids owe their chemical reactivity to ______. a. oxygen b. the hydrogen ion c. overexposure d. alkalis Janet Martinez Lopez

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Name: ______________________ ID: A 4 ____ 24. For which of the following purposes would acids most likely be used? a. to raise the pH of products b. to swell the hair c. to exfoliate the skin d. to soften calloused skin ____ 25. Acid–alkali neutralization reactions occur when an acid is mixed with an alkali in equal proportions, balancing the total pH and forming water (H 2 O) and ______. a. a salt b. nitrogen c. carbon dioxide d. a sulfur ____ 26. What does an oxidizing agent do? a. absorbs oxygen b. releases oxygen c. increases oxygen d. nullifies oxygen ____ 27. What does a reducing agent do? a. adds hydrogen to a chemical compound b. subtracts hydrogen from a chemical compound c. adds oxygen to a chemical compound d. subtracts nitrogen from a chemical compound ____ 28. What accompanies the rapid oxidation of a substance during combustion? a. the production of heat and light b. an endothermic reaction c. neutralization d. an ionization of the substance ____ 29. Which of the following is TRUE of products that are incompatible? a. No two should be stored next to each other. b. They can be safely mixed with proper precautions. c. They should never be used on clients. d. They are always considered dangerous. ____ 30. Why should ammonia never be mixed with bleach? a. It “discolors” more than lightens the hair. b. It dries out skin excessively. c. It creates a potentially deadly gas. d. They become unpredictable in their use. ____ 31. When mixing chemicals, one should ______. a. avoid rooms or areas that are well ventilated b. add the water to the chemical, not the other way around c. never use secondary containers, such as spray bottles d. use a measuring device, such as a measuring cup or spoon Janet Martinez Lopez

Name: ______________________ ID: A 5 ____ 32. Which of the following is TRUE today of the disposal of many of the chemicals used in salons, spas, and barbershops? a. There are no regulations in place anywhere across the United States. b. Most states and counties do not have regulations in place. c. Most states and counties have regulations in place. d. There are strict and universal regulations in place across the United States. ____ 33. Guidelines for properly storing chemicals include all EXCEPT which of the following? a. Never dispose of chemicals in their original containers. b. Never allow chemicals to sit out. c. Always lock up chemicals when not in use. d. Never haphazardly combine two chemicals. ____ 34. What did the Safety Data Sheet (SDS) replace? a. the Material Safety Data Sheet (MSDS) b. the Environmental Protection Agency (EPA) c. the National Institutes of Health (NIH) d. the Occupational Safety and Health Administration (OSHA) ____ 35. An SDS is formatted into ______ categories. a. 16 b. 12 c. 10 d. 8 ____ 36. How many accepted pictograms are included in all SDS? a. 3 b. 6 c. 9 d. 16 ____ 37. SDS are designed for: a. use in an emergency b. use only by new employees c. use only by managers d. everyday use ____ 38. In the uniform order of the SDS, which of the following comes immediately after the first category of “Identification”? a. Hazard Identification b. First-Aid Measures c. Toxicology Information d. Disposal Considerations ____ 39. Which of the following BEST describes a carcinogen? a. a substance that causes cancer b. a substance made of carbon c. a material capable of igniting or burning d. a material that is very easy to ignite Janet Martinez Lopez

Name: ______________________ ID: A 6 ____ 40. A ______ is capable of igniting and burning. a. combustible b. carcinogen c. mutagen d. chemical ____ 41. Abner is opening a beauty business. He knows that his course in chemistry will help him to run a better business because ______. a. it is well known that beauty pros are often part-time chemists b. his clients will demand a high intelligence in chemistry c. every product he uses in his establishment will contain some type of chemical d. chemical experimentation is essential in beauty services ____ 42. Darren has just opened his high-end business. When his first customer enters his establishment and asks if Darren’s retail products are chemical free, what should his response be? a. “Yes,” if he believes they are, indeed, chemical free. b. “Yes,” whether they are or not because the client is unlikely to know the difference. c. “No,” if they are not chemical free because honesty is always the best policy. d. “No,” because there is no such thing as a chemical-free product. ____ 43. Jonathan, a licensed professional with his own business, is driving to the store to buy two dozen large bags of ice. Much of the rehabilitative work he and his employees do for clients relies on ice, and because someone left the freezer door open all night, their entire stockpile of ice is now water. Which of the following happened to the ice when it melted? a. an immiscible reaction b. a chemical reaction c. a physical change d. a chemical change ____ 44. Marcus and Amanda are arguing over whether air is a pure substance. Marcus insists that it is, whereas Amanda is certain that it is not. Who is correct, and why? a. Marcus is correct because air contains nitrogen, a pure substance. b. Marcus is correct because there are no pieces of matter in air. c. Amanda is correct because air contains many substances, so it cannot be pure. d. Amanda is correct because air contains no substances at all. ____ 45. Chloe is making a scented mist to use on her clients following their services. Which of the following is TRUE of the drops of lavender extract she is mixing into the water? a. They are solvents. b. They are solutes. c. They are solutions. d. They are immiscible. ____ 46. Javier is attempting to create a soothing oil to use on his clients during services. The problem Javier is running into, however, is that when the mixture is left to sit for more than five minutes, its components separate. Which of the following is most likely TRUE of the components of Javier’s mixture? a. They are miscible. b. They are immiscible. c. They are solvents. d. They are solutes. Janet Martinez Lopez

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Name: ______________________ ID: A 7 ____ 47. Jennifer is using a new soothing oil on her clients during services. The problem Jennifer is running into, however, is that when the mixture is left to sit for more than five minutes, its components separate. Which of the following could Jennifer add to her mixture to solve this problem? a. an emulsifier b. a solvent c. a solute d. a suspension ____ 48. Gina is considered a bit of a “know-it-all” at work. For example, she is always telling Grace, her coworker, “My goodness, Grace, you’d better be using the first surfactant regularly.” Which of the following is Gina most likely trying to say to Grace, in her own strange way? a. “Brush your teeth.” b. “Wash your hands.” c. “Comb your hair.” d. “Polish your nails.” ____ 49. Terry experienced no harsh reactions herself to the chemicals she was using on her clients during the first six months of owning and managing her business. Since about that six-month anniversary, however, she has battled continuous skin allergies as well as difficulty breathing. Which of the following BEST explains this? a. the overexposure principle b. neutralization c. the Safety Data Sheet d. emulsification ____ 50. Harriet’s client Rafael has requested that Harriet use a solution that is neutral to his skin. Which of the following should Harriet be using on Rafael’s skin? a. a pH of 0 b. a pH of 5 c. a pH of 7 d. a pH of 14 ____ 51. Daria’s boss has instructed her to create a variety of products and mixtures. The one thing her boss insisted upon was that each have a measurable pH. Which of the following must Daria include in all of her mixtures and products? a. water b. salt c. nitrogen d. oil ____ 52. If you were to leave the freezer open all night, all of the ice will melt. This is a result of ______. a. an endothermic reaction b. an exothermic reaction c. neutralization d. ionization Janet Martinez Lopez

Name: ______________________ ID: A 8 ____ 53. Why is Maggie MOST LIKELY confident she’ll be made aware of any hazards associated with the products she works with and sells in her businesses? a. Because she graduated from beauty school. b. Because the products all have labels. c. Because the products are registered with the EPA. d. Because none of the products contain chemicals. ____ 54. Linda’s manager told her to use caution when unloading the supply truck on Tuesday mornings. “Make sure to pay attention to certain products and chemicals that are incompatible,” he said. What should Linda make sure she does with these types of products? a. Keep them refrigerated. b. Return them to the manufacturer. c. Store them away from each other. d. Avoid letting clients touch them. ____ 55. Henry’s duties include mixing a variety of chemicals for the products and treatment ointments and mixtures they use on customers. When mixing these chemicals, Henry should avoid all EXCEPT which of the following? a. the use of uncertain chemicals b. adding water to the chemicals c. well-ventilated areas d. misreading chemical labels ____ 56. Thomas, owner of a local beauty business, insists that there is an SDS available for every chemical used. Why is Thomas so strict about this? a. Because most clients will insist on it. b. Because it is the most cost-effective policy. c. Because it is a requirement of OSHA. d. Because it enhances the image of the business. ____ 57. Celia, Jamison’s client, has asked that he not use any known mutagens in her treatments. Which of the following is the MOST LIKELY reason she made this request? a. She cannot afford to pay for expensive products. b. She has a fear of fire and of things that can easily ignite. c. She has a weakened immune system and is susceptible to cancers. d. Her skin is sensitive to highly acidic products and chemicals. ____ 58. You are an instructor of beauty and wellness courses at a local vocational school. Teresa, one of your students, asks you why it is so important that beauty professionals have a thorough understanding of chemistry. What do you tell her? a. Without an understanding of basic chemistry, she will not be able to use professional products effectively and safely. b. As she progresses toward a successful career, her clients will become more and more critical of her knowledge of chemistry. c. To someday make it as a business owner, her economic viability is reliant on real chemistry “intelligence.” d. Chemistry is the backbone of the beauty and wellness industry, and if she lacks a high knowledge of it she cannot be a part of that industry. Janet Martinez Lopez

Name: ______________________ ID: A 9 ____ 59. Genevieve is fresh out of beauty school and anxious to open her own business. In gathering research and pricing out products for her shop, she is contacted by a salesperson of massage oils. He tells her his products are all chemical free, and she should pay the extra cost to offer them to her clients. Which of the following would be the BEST reason for Genevieve to decide against buying this salesperson’s massage oils? a. The extra cost for these massage oils is prohibitive because she is just starting out. b. Because there is no such thing as a chemical-free product, this salesperson should not be trusted. c. Her clients are not likely to appreciate the difference in expensive chemical-free massage oils. d. Chemical-free massage oils are known to leave rashes on sensitive skin. ____ 60. Daryl works for you, and you recently asked Daryl to mix various solutes with solvents to create solutions as products for clients and customers. Several hours into his work, Daryl comes to you and asks what he should do if certain mixtures will not “mix.” Specifically, he says, “In many of the mixtures I am creating, I am combining two or more immiscible substances. What should I do?” What advice should you give to Daryl? a. “Keep mixing, as eventually they will combine into a stable mixture.” b. “Try adding the solvent into the solute, instead of the other way around.” c. “Incorporate an emulsifier into your mixture in order to create a stable blend.” d. “Remove any water from the mixture, as this will enhance stability within it.” ____ 61. You are the owner of a high-end establishment. Your best beauty pro, Niles, has confessed that the massage oils the employees have been using without incident for many months are now starting to give them terrible rashes and sneezing fits. Which of the following do you use to explain to Niles what has happened? a. the pH principle b. the overexposure principle c. ionization d. neutralization ____ 62. Shawna is your new client where you work. She has told you that she left the business she previously went to for three years because they were not attentive enough to the needs of her very sensitive skin. Shawna, it seems, has very dry, dehydrated, and irritable skin. Which of the following do you advise Shawna on during her initial consultation visit? a. She should avoid using cosmetic products altogether. b. She should not try to change the nature of her skin. c. She should use products that are slightly alkaline. d. She should use products that are very acidic. ____ 63. Franco is a product chemist, combining chemicals in order to create solutions, suspensions, and emulsions for the purposes of making clients feel, look, and smell better. Most recently, Franco has been working on lotions and creams that, when mixed with activators, warm the bottles in which they are contained. Upon what is Franco relying to create these lotions? a. neutralization b. ionization c. exothermic reactions d. endothermic reactions Janet Martinez Lopez

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Name: ______________________ ID: A 10 ____ 64. Which of the following is TRUE of electricity and the beauty and wellness industry? a. Most beauty professionals will not interact directly with electricity. b. Most of the equipment that beauty professionals deal with is very dangerous. c. Electricity use in the beauty industry is limited to clippers and hair dryers. d. Advanced electrical machines require an understanding of electrical theory. ____ 65. Electricity use impacts ______ of the services that beauty professionals offer their clients. a. all b. most c. about half d. a small handful ____ 66. Which of the following types of effects does electricity exhibit? a. magnetic b. magnetic and thermal c. magnetic and chemical d. magnetic, thermal, and chemical ____ 67. Which of the following is TRUE of electricity? a. It occupies space, but has no mass. b. It has mass, but occupies no space. c. It occupies space and has mass. d. It does not occupy space or have mass. ____ 68. Why is copper used in electrical wiring and electrical motors? a. Because it is inexpensive. b. Because it is a good conductor. c. Because it is a good insulator. d. Because it provides safeguards against electrocution. ____ 69. Which of the following is an example of a conductor? a. tap water b. rubber c. glass d. cement ____ 70. Which of the following is a good example of an insulator? a. copper b. tap water c. wood d. steel ____ 71. Which of the following BEST differentiates between direct current and alternating current? a. Direct current flows in one direction, whereas alternating current flows back and forth. b. Direct current flows back and forth, whereas alternating current flows in one direction. c. Direct current is not truly an electrical current, whereas alternating current is. d. Direct current is the true form of electrical current, whereas alternating current is not. Janet Martinez Lopez

Name: ______________________ ID: A 11 ____ 72. Which of the following is TRUE of alternating current? a. It is produced by chemical means. b. It travels in only one direction. c. It is most often found in batteries. d. It is a rapid, interrupted current. ____ 73. Which of the following measures the resistance of electrical current? a. an ohm b. an ampere c. a volt d. a watt ____ 74. What does a watt measure? a. how much electric energy is being used in one second b. the pressure or force that pushes electric current through a conductor c. the strength of an electric current d. the resistance of an electric current ____ 75. What is TRUE of a wire that is not large enough to carry the electrical current passing through it? a. It will not power the device. b. It will overheat. c. It will electrocute the user. d. It will save energy. ____ 76. Which of the following is an example of an electrical safety device that you may encounter when working in a salon, spa, or barbershop? a. an ampere b. a circuit breaker c. an alternating current d. a conductor ____ 77. Which of the following is an electrical safety device that is designed to prevent excessive current from passing through a circuit by blowing out or melting when a wire becomes too hot from overloading the circuit with too much current? a. a fuse b. a circuit breaker c. an ampere d. a nonconductor ____ 78. Why is grounding important? a. Because it protects against electrical shock. b. Because it prevents downed wires in storms. c. Because it turns conductors into nonconductors. d. Because it turns direct current into alternating current. ____ 79. The third circular electrical connection on a three-prong plug is called a ______. a. ground fault interrupter b. grounding pin c. circuit breaker d. fuse Janet Martinez Lopez

Name: ______________________ ID: A 12 ____ 80. In which of the following locations would a GFI MOST likely be required? a. a bathroom b. a bedroom c. an office building d. a basement ____ 81. Which of the following is NOT good electrical safety advice? a. Read all electrical safety instructions carefully. b. Inspect all electrical equipment regularly. c. Pull on the cord, not the plug, when disconnecting an electrical appliance. d. Keep electrical cords off the floor and away from everyone’s feet. ____ 82. In order to practice good electrical safety, ALWAYS ______. a. attempt to repair electrical appliances when they malfunction b. twist electrical cords to protect against a short circuit c. attempt to clean around electrical outlets while equipment is plugged in d. disconnect appliances when they are not in use ____ 83. Which of the following should you do if you receive a light shock sensation while using an electrical appliance? a. Continue using the appliance with caution. b. Attempt to repair the appliance immediately. c. Unplug the appliance from the wall. d. Give the appliance a short break before using it again. ____ 84. The use of electrical currents to treat the skin is called ______. a. electrotherapy b. electrocution c. electrolysis d. electrode ____ 85. Which of the following is used as an applicator for directing electric current from an electrotherapy device to the client’s skin? a. an electrode b. an ohm c. a modality d. a fuse ____ 86. Which of the following is TRUE of the poles of an electric current? a. They are either positive or negative. b. They are either left or right. c. They are either direct or alternating. d. They are either conductive or nonconductive. ____ 87. Which of the following BEST differentiates a positive electrode from a negative electrode? a. The positive electrode is called a cathode; the negative electrode is called an anode. b. The positive electrode is called an anode; the negative electrode is called a cathode. c. The positive electrode has an electric charge; the negative electrode does not. d. The positive electrode has no electric charge; the negative electrode does. Janet Martinez Lopez

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Name: ______________________ ID: A 13 ____ 88. Which of the following is TRUE of a galvanic current? a. It is a broken, inconsistent current. b. It is an indirect current. c. It has a positive and a negative pole. d. It does not produce a chemical change. ____ 89. Which of the following reactions can be expected when using cataphoresis? a. a closing of pores b. a stimulation of nerves c. an increase in blood supply d. a softening of tissues ____ 90. Which of the following reactions can be expected when using anaphoresis? a. a closing of pores b. a stimulation of nerves c. a decrease in blood supply d. a hardening of tissues ____ 91. For which of the following would microcurrent be MOST useful? a. removing the natural protective barrier of the skin b. slowing healing time for acne lesions c. decreasing muscle tone d. reducing redness and inflammation ____ 92. Which of the following is Tesla high-frequency current used for? a. slowing blood circulation b. decreasing elimination and absorption c. decreasing skin metabolism d. improving germicidal action ____ 93. A condition that prohibits certain treatments is called a ______. a. cathode b. catalyst c. contraindication d. conductor ____ 94. The electromagnetic spectrum is the name given to ______. a. all forms of microwaves b. all forms of energy except for gamma rays c. all forms of energy except for X-rays d. all of the forms of energy that exist ____ 95. Which of the following types of energy is most likely associated with nuclear power plants? a. radio waves b. gamma rays c. X-rays d. microwaves Janet Martinez Lopez

Name: ______________________ ID: A 14 ____ 96. Which of the following is TRUE of fluorescent light? a. It is warmer than natural sunlight. b. It is cooler than natural sunlight. c. It is a yellow-gold light. d. It is a type of incandescent light. ____ 97. How does energy move through space? a. in waves b. electromagnetically c. by physical force d. mechanically ____ 98. Which of the following BEST differentiates between long wavelengths and short wavelengths? a. Long wavelengths have low frequency; short wavelengths have high frequency. b. Short wavelengths have low frequency; long wavelengths have high frequency. c. Long wavelengths are visible; short wavelengths are not. d. Short wavelengths are visible; long wavelengths are not. ____ 99. Which percentage of natural sunlight is visible, making up the visible spectrum of light? a. 10% b. 35% c. 70% d. 95% ____100. Which of the following is TRUE of infrared light? a. It is visible to the eye. b. It is galvanic. c. It is a bluish light. d. It produces heat. ____101. Which of the following is TRUE of ultraviolet light? a. It has a long wavelength. b. It is invisible. c. It slows chemical reactions. d. It is hot light. ____102. Which type of light prompts the skin to produce beneficial vitamin D? a. ultraviolet light b. infrared light c. fluorescent light d. galvanic light ____103. Light therapy is also known as ______. a. heat therapy b. phototherapy c. radiotherapy d. laser therapy Janet Martinez Lopez

Name: ______________________ ID: A 15 ____104. Cornelius is opening a beauty business. He will need to have a thorough understanding of electricity for all EXCEPT which of the following reasons? a. Cornelius will rely on a variety of electrical devices. b. Cornelius will rely on lighting and air temperature controls for the comfort of his clients. c. Cornelius will need to be able to quickly repair electrical devices when they malfunction. d. Cornelius will need to be able to properly care for a variety of electrical devices. ____105. Alycia notices a prior employee tried to repair a crack in the power cord on an electrical device with an insulator. Which of the following may have been used as an insulator? a. disinfecting wipes b. heavy rubber tape c. a rag d. a heavier gauge wire ____106. Julie relies on a constant, even flow of electricity that is produced by chemical means for the wireless tools she uses in her daily work. What is Julie looking for? a. a direct current b. an indirect current c. an insulator d. a nonconductor ____107. Jane noticed that as she was working on a client throughout the morning, the electrical extension cord from her electrical device to the outlet was getting hotter and hotter. Knowing this, which of the following is MOST likely true? a. The electrical device has fewer volts than the outlet it is plugged into. b. The electrical device has more volts than the outlet it is plugged into. c. The extension cord’s gauge is too small to support the amperage rating of the electrical device. d. The extension cord’s gauge is too large to support the amperage rating of the electrical device. ____108. Jeremy is having a hard time getting his electrical equipment to work properly for his clients. The technician who came in to look at the situation advised Jeremy that the current is not able to flow through the wires efficiently. Why is this MOST likely the case? a. The force (volts) is stronger than the resistance (ohms). b. The resistance (ohms) is stronger than the force (volts). c. The amperage of the appliances is rated higher than the cords being used. d. The amperage of the appliances is rated lower than the cords being used. ____109. Just as Sandra turned on her electrical device, all of the appliances in the business shut off and the lights went dark. It turned out that Sandra’s device, added to all of the other appliances that were in use, was asking for too much amperage. Which of the following did Sandra MOST likely have to do to quickly get the power in the establishment back on? a. Flip the main circuit switch on the circuit breaker. b. Lower the amperage of the appliances in use. c. Change the current in the establishment from direct to alternating. d. Replace the conductors in the establishment with inductors. Janet Martinez Lopez

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Name: ______________________ ID: A 16 ____110. Alyssa noticed that the electrical device she uses on the job has a three-pronged plug that was to be inserted into a three-pronged outlet in the wall. Since there were only two-pronged outlets in the room, however, Alyssa purchased an adapter to connect her three-pronged device into a two-pronged outlet. Why was this a bad idea? a. Adapting a three-pronged plug to fit into a two-pronged outlet changes the appliance’s amperage. b. Adapting a three-pronged plug to fit into a two-pronged outlet switches direct current into alternating current. c. Adapting a three-pronged plug to fit into a two-pronged outlet eliminates the intended grounding. d. Adapting a three-pronged plug to fit into a two-pronged outlet makes the conductor an inductor. ____111. Klaus has noticed that, throughout the establishment, there are ground fault interrupters (GFIs) in the walls beside all sinks and in the bathrooms and the employee kitchen. Why are these types of receptacles strategically placed in these locations? a. GFIs are required in places where shock hazard are likely (such as near any running or sitting water). b. GFIs are required wherever direct current is transferred to alternate current (such as in bathrooms). c. GFIs are most useful in salons, spas, and barbershops because appliances that heat up can only operate when a GFI is in place. d. GFIs are most useful in salons, spas, and barbershops because when multiple appliances are in use, GFIs must be in place. ____112. Jamil plugged an electrical device into the outlet on the wall and it immediately started to spark. Jamil, very startled, wasn’t sure what to do. What should Jamil do? a. Wait for five minutes to see if the sparking stops, then continue using the device. b. Unplug the device and attempt to repair it before trying to plug it in again. c. Unplug the device immediately and use another until that one can be repaired. d. Throw the device away and immediately call the fire department. ____113. While working on a customer, Cindy accidentally dropped her electrical device into a sink full of water. Which of the following should Cindy do? a. Cindy should quickly grab the device out of the sink full of water. b. Cindy should quickly unplug the device from the outlet. c. Cindy should run over to the circuit breaker panel and shut down all power to the establishment. d. Cindy should get everyone out of the establishment and call the fire department. ____114. Many of Wilson’s clients complain to him that their skin always appears very bluish-green when they are sitting in his chair. Which of the following would most likely be the cause of this? a. the incandescent lighting just above Wilson’s station b. the fluorescent lighting just above Wilson’s station c. the ultraviolet lighting just above Wilson’s station d. the natural sunlight that comes in from the window beside Wilson’s station Janet Martinez Lopez

Name: ______________________ ID: A 17 ____115. Owner Samuel’s client, Janine, has just learned she has skin cancer. While Janine’s doctor told her that the cancer is most likely treatable, she is still concerned about further exposure and damage. She asks Samuel which type of light caused her skin cancer. Which of the following types of light most likely did so? a. ultraviolet B light b. ultraviolet C light c. infrared light d. visible light ____116. Maria knows that light therapy is most likely the best solution for her client, James. Assuming Maria is correct, which of the following is LEAST likely to be true of James? a. James wants to get rid of the wrinkles on his forehead. b. James wants to remove the hair on his back. c. James wants to eliminate some of his age spots. d. James wants to lighten his hair color. ____117. You are an instructor of beauty and wellness courses at a local vocational school. Ursula, a student of yours, asks you why it is so important that beauty professionals have a thorough understanding of electricity. What do you tell her? a. Without an understanding of basic electricity, she will not be able to use professional electrical appliances effectively and safely. b. As she progresses toward a successful career, her clients will become more and more expectant of her knowledge in electricity. c. In order to someday make it as her own salon, spa, or barbershop owner, economic viability will be reliant on her skills as an electrician. d. Electricity is the backbone of the beauty and wellness industry and if she lacks a solid understanding of it she cannot be a part of that industry. ____118. Manny is excited to use his new series of hand-held appliances on his clients this week. His boss has told Manny to come in to work prepared to get used to the new equipment. All Manny knows is that the appliances are expensive and top of the line and that they run on alternating current. Manny has already cleaned off his station, made sure that he has ample space to work, properly disposed of his old appliances, and picked up plenty of long-lasting batteries for the new appliances. What mistakes, if any, has Manny made? a. Manny has not made any mistakes. b. Manny should not have disposed of his old equipment. c. Manny should not have purchased any batteries. d. Manny should not have cleaned out and made extra space at his station. Janet Martinez Lopez

Name: ______________________ ID: A 18 ____119. As a business owner, Brenda knows the importance of electrical safety. Each evening, she is the last person to leave work. Before she leaves, she makes sure that all electrical appliances are shut off and unplugged. Any that have been left plugged in, she carefully unplugs by pulling on the plug, not the cord. Every morning, Brenda arrives early to work. Before any other employees arrive, she first plugs all of the appliances back in, then carefully cleans them. Finally, she makes sure that all cords to the appliances are tucked away and not left in the middle of the room for customers and employees to trip over. What, if anything, has Brenda done wrong? a. Brenda has done nothing wrong. b. Brenda should unplug the appliances by the cord, not the plug. c. Brenda should not clean the appliances while they are plugged in. d. Brenda should leave all appliance cords out in the middle of the floor so that people can see them. ____120. You are the manager of a beauty business. You are startled during a busy afternoon when one of your best beauty pros, Wanda, starts screaming that her electrical device, which she is still holding onto, is sending powerful shocks up her hand and arm. What should you do? a. Yell to Wanda to keep hold of the device and grab an insulator with her other hand. b. Yell to Wanda to keep hold of the device and grab a conductor with her other hand. c. Yell to Wanda to drop the device immediately. d. Run over to Wanda and grab the device out of her hand. ____121. Your client, Rachel, sat down with you to discuss her client intake form before she receives Tesla high-frequency current, which is commonly used in electrical facial and scalp treatments. What might Rachel have told you that would lead you to rule out Tesla high-frequency current as a treatment option for her? a. Rachel told you that she has bad acne. b. Rachel told you that her condition is specific to her scalp. c. Rachel told you that she is pregnant. d. Rachel told you that she feels she needs to increase both elimination and absorption. ____122. You are a worker at a high-end establishment that uses cutting-edge technology and techniques in treating clientele. Your newest client, Gregory, has just told you that his doctor is recommending UV light therapy as part of his overall path toward better health. Which of the following is MOST likely the reason why Gregory’s doctor has recommended this particular type of light exposure as part of his therapy? a. Gregory is very low on vitamin D. b. Gregory is at high risk for developing skin cancer. c. Gregory has skin cancer. d. Gregory is developing premature wrinkles. Janet Martinez Lopez

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C48 - HW2 Study Guide 2 Chemistry:Electricity

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