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Home appliance

Home appliance is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Home appliance rather than just read about it. In short: A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. The domestic application attached to home appliance is tied to the definition of appliance as "an instrument or device designed for a particular use or function".

Home appliance — main illustration
Home appliance — illustration

Key takeaways

  • Home appliance belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Home appliance to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Home appliance from memory before moving on to harder problems.

Reference excerpt

A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. The domestic application attached to home appliance is tied to the definition of appliance as "an instrument or device designed for a particular use or function". Collins English Dictionary defines "home appliance" as: "devices or machines, usually electrical, that are in your home and which you use to do jobs such as cleaning or cooking". The broad usage allows for nearly any device intended for domestic use to be a home appliance, including consumer electronics as well as stoves, refrigerators, toasters and air conditioners. The development of self-contained electric and gas-powered appliances, an American innovation, emerged in the early 20th century. This evolution is linked to the decline of full-time domestic servants and desire to reduce household chores, allowing for more leisure time. Early appliances included washing machines, water heaters, refrigerators, and sewing machines. The industry saw significant growth post-World War II, with the introduction of dishwashers and clothes dryers. By the 1980s, the appliance industry was booming, leading to mergers and antitrust legislation. The US National Appliance Energy Conservation Act of 1987 mandated a 25% reduction in energy consumption every five years. By the 1990s, five companies dominated over 90% of the market. Major appliances, often called white goods, include items like refrigerators and washing machines, while small appliances encompass items such as toasters and coffee makers. Product design shifted in the 1960s, embracing new materials and colors. Consumer electronics, often referred to as brown goods, include items like TVs and computers. There is a growing trend towards home automation and internet-connected appliances. Recycling of home appliances involves dismantling and recovering materials.

History

While many appliances have existed for centuries, the self-contained electric or gas powered appliances are a uniquely American innovation that emerged in the early twentieth century. The development of these appliances is tied to the disappearance of full-time domestic servants and the desire to reduce the time-consuming activities in pursuit of more recreational time. In the early 1900s, electric and gas appliances included washing machines, water heaters, refrigerators, kettles and sewing machines. The invention of Earl Richardson's small electric clothes iron in 1903 gave a small initial boost to the home appliance industry. In the Post–World War II economic expansion, the domestic use of dishwashers, and clothes dryers were part of a shift for convenience. Increasing discretionary income was reflected by a rise in miscellaneous home appliances. In America during the 1980s, the industry shipped $1.5 billion worth of goods each year and employed over 14,000 workers, with revenues doubling between 1982 and 1990 to $3.3 billion. Throughout this period, companies merged and acquired one another to reduce research and production costs and eliminate competitors, resulting in antitrust legislation. The United States Department of Energy reviews compliance with the National Appliance Energy Conservation Act of 1987, which required manufacturers to reduce the energy consumption of the appliances by 25% every five years. In the 1990s, the appliance industry was very consolidated, with over 90% of the products being sold by just five companies. For example, in 1991, dishwasher manufacturing market share was split between General Electric with 40% market share, Whirlpool with 31%, Electrolux with 20%, Maytag with 7% and Thermador with just 2%.

Major appliances

Major appliances, also known as white goods, comprise major household appliances and may include: air conditioners, dishwashers, clothes dryers, drying cabinets, freezers, refrigerators, kitchen stoves, water heaters, washing machines, trash compactors, microwave ovens, and induction cookers. White goods were typically painted or enameled white, and many of them still are.

Small appliances

Small appliances are typically small household electrical machines, also very useful and easily carried and installed. Yet another category is used in the kitchen, including: juicers, electric mixers, meat grinders, coffee grinders, deep fryers, herb grinders, food processors, electric kettles, waffle irons, coffee makers, blenders, rice cookers, toasters and exhaust hoods.

Product design In the 1960s the product design for appliances such as washing machines, refrigerators, and electric toasters shifted away from Streamline Moderne and embraced technological advances in the fabrication of sheet metal. A choice in color, as well as fashionable accessory, could be offered to the mass market without increasing production cost. Home appliances were sold as space-saving ensembles.

Consumer electronics

Consumer electronics (or home electronics) are electronic (analog or digital) equipment intended for everyday use, typically in private homes. Consumer electronics include devices used for entertainment, communications and recreation. In British English, they are often called "brown goods" by producers and sellers, to distinguish them from "white goods" which are meant for housekeeping tasks, such as washing machines and refrigerators, although nowadays, these could be considered brown goods, some of these being connected to the Internet. Some such appliances were traditionally finished with genuine or imitation wood, hence the name. This has become rare but the name has stuck, even for goods that are unlikely ever to have had a wooden case (e.g. camcorders). In the 2010s, this distinction is absent in large big box consumer electronics stores, which sell both entertainment, communication, and home office devices and kitchen appliances such as refrigerators. The highest selling consumer electronics products are compact discs. Examples are: home electronics, radio receivers, TV sets, VCRs, CD and DVD players, digital cameras, camcorders, still cameras, clocks, alarm clocks, computers, video game consoles, HiFi and home cinema, telephones and answering machines.

Life spans

… excerpt ends here. Continue reading the full article.

Illustrations

Home appliance illustration
Home appliance: Early 20th century electric toaster
Early 20th century electric toaster
Home appliance: Swedish washing machine, 1950s
Swedish washing machine, 1950s
Home appliance: Small kitchen appliances
Small kitchen appliances
Home appliance: The small appliance department at a store
The small appliance department at a store

Worked examples

Example 1 — a first encounter with Home appliance

Start with the simplest possible case. Write down what Home appliance claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Home appliance before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Home appliance ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Home appliance

In research
Home appliance appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Home appliance in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Home appliance is common in secondary-school and first-year university syllabi. It links to neighbouring topics Home appliances, so understanding it makes those chapters shorter.
In everyday life
Look for Home appliance outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Home appliance in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Home appliance means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Home appliance out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Home appliance in simple terms?

A home appliance, also referred to as a domestic appliance, an electric appliance or a household appliance, is a machine which assists in household functions such as cooking, cleaning and food preservation. The domestic application attached to home appliance is tied to the definition of appliance a…

Why does Home appliance matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Home appliance?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Home appliance.

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