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Вопрос № 147913 - Английский язык

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Microwaves
1. Microwaves are a form of radiant energy. Other common forms are radio waves, visible light, infrared heat and electricity. All forms of radiant energy are a part of the electromagnetic spectrum. To distinguish between the forms, they are classified according to the wave length which may vary from miles to thousandths of an inch.
2. Microwaves are located in the non-ionizing portion of the energy spectrum between radio waves and visible light. The first application of microwaves was in radar during World War II. Today microwaves are widely used in communication systems, radar and many other commercial and industrial applications.
3. Significantly large segments of the population are exposed to infrared rays, visible light waves and microwaves every day. One characteristic of microwaves is their ability to bounce or deflect off metal surfaces, a characteristic basic to its use in radar. Another is its thermal or heating effect utilized in microwave cooking.
4. The difference between microwave energy and other forms of ionizing radiation, such as X-rays, Alpha, Beta and Gamma rays, is that microwave energy is non-ionizing. In other words, it does not alter the molecular structure of the item being heated. The effects of microwave energy are strictly thermal and do not cause cellular change as with ionizing radiation.
Ответьте на вопрос:
What forms of radiant energy do most people deal with daily?
Варианты ответов
  • They deal with X-rays, Alpha, Beta and Gamma rays.
  • They deal with microwaves while using microwave ovens.
  • They deal with infrared rays, visible light waves and microwaves.
  • They deal with all forms of energy of electromagnetic spectrum.
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Вопрос задал(а): Анонимный пользователь, 24 Май 2017 в 16:54
На вопрос ответил(а): Любимов Павел, 24 Май 2017 в 16:54

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Вопрос № 1058011

Прочитайте текст и выполните задания.
Microwaves
1. Microwaves are a form of radiant energy. Other common forms are radio waves, visible light, infrared heat and electricity. All forms of radiant energy are a part of the electromagnetic spectrum. To distinguish between the forms, they are classified according to the wave length which may vary from miles to thousandths of an inch.
2. Microwaves are located in the non-ionizing portion of the energy spectrum between radio waves and visible light. The first application of microwaves was in radar during World War II. Today microwaves are widely used in communication systems, radar and many other commercial and industrial applications.
3. Significantly large segments of the population are exposed to infrared rays, visible light waves and microwaves every day. One characteristic of microwaves is their ability to bounce or deflect off metal surfaces, a characteristic basic to its use in radar. Another is its thermal or heating effect utilized in microwave cooking.
4. The difference between microwave energy and other forms of ionizing radiation, such as X-rays, Alpha, Beta and Gamma rays, is that microwave energy is non-ionizing. In other words, it does not alter the molecular structure of the item being heated. The effects of microwave energy are strictly thermal and do not cause cellular change as with ionizing radiation.
Содержанию текста соответствует утверждение …
One can heat food in tinware in microwave ovens.
All forms of radiant energy can be transformed into microwaves.
Food in microwave ovens can modify its the cellular structure.
For the first time microwaves were applied for military purposes.

Вопрос № 1057996

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Microwaves
1. Microwaves are a form of radiant energy. Other common forms are radio waves, visible light, infrared heat and electricity. All forms of radiant energy are a part of the electromagnetic spectrum. To distinguish between the forms, they are classified according to the wave length which may vary from miles to thousandths of an inch.
2. Microwaves are located in the non-ionizing portion of the energy spectrum between radio waves and visible light. The first application of microwaves was in radar during World War II. Today microwaves are widely used in communication systems, radar and many other commercial and industrial applications.
3. Significantly large segments of the population are exposed to infrared rays, visible light waves and microwaves every day. One characteristic of microwaves is their ability to bounce or deflect off metal surfaces, a characteristic basic to its use in radar. Another is its thermal or heating effect utilized in microwave cooking.
4. The difference between microwave energy and other forms of ionizing radiation, such as X-rays, Alpha, Beta and Gamma rays, is that microwave energy is non-ionizing. In other words, it does not alter the molecular structure of the item being heated. The effects of microwave energy are strictly thermal and do not cause cellular change as with ionizing radiation.
Основной идеей текста является …
All forms of radiant energy including microwaves are a form of electromagnetic spectrum and are classified according to the wave length.
Microwave energy being the form of non-ionizing radiation, it does not alter the molecular structure of the item being heated.
At present microwaves are widely used for communication, military, commercial and industrial purposes.
Being a part of electromagnetic spectrum, microwaves have some distinctive characteristics that allow people to use them for different purposes.

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Вопрос № 148276

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Technology
1. Technology is the usage and knowledge of tools, techniques, and crafts, or is systems or methods of organization, or is a material product of these things. The word technology comes from the Greek technología meaning craft and the study of something, or the branch of knowledge of a discipline. The term can either be applied generally or to specific areas.
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Определите основную идею текста.
People rely on technology as it helps them to produce more goods.
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Вопрос № 148344

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Вопрос № 148628

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Вопрос № 148649

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