George Stephenson and Robert Stephenson
Стр 1 из 6Следующая ⇒ Иностранный язык Для студентов заочного отделения
Нижний Новгород 2015 МИНИСТЕРСТВО ОБРАЗОВАНИЯ И НАУКИ РФ ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ПРОФЕССИОНАЛЬНОГО ОБРАЗОВАНИЯ «НИЖЕГОРОДСКИЙ ГОСУДАРСТВЕННЫЙ ТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ им.Р.Е. Алексеева» ДЗЕРЖИНСКИЙ ПОЛИТЕХНИЧЕСКИЙ ИНСТИТУТ (ФИЛИАЛ)
ИНОСТРАННЫЙ ЯЗЫК ДЛЯ СТУДЕНТОВ ЗАОЧНОГО ОТДЕЛЕНИЯ
Под общей редакцией кандидата педагогических наук Е.П. Дупленко
Рекомендовано Ученым советом Нижегородского государственного технического университета им. Р.Е.Алексеева в качестве учебного пособия для аспирантов, магистрантов, студентов старшего этапа обучения и преподавателей иностранных языков всех специальностей
Нижний Новгород 2015
Авторы: Е.П. Дупленко, Н.В. Белькович, О.Р. Боброва, Т.А. Воронова, Л.Ф. Кольцова, Т.Н. Павлычева, Т.Г. Проворова
Р е ц е н з е н т профессор кафедры теории и практики французского языка ФГБОУ ВПО «НГЛУ им. Н.А.Добролюбова», кандидат филологических наук, доцент Т.П. Понятина
И 68 Иностранный язык для студентов 1 курса заочного отделения: учеб. пособие Е.П. Дупленко и др.; под ред. Е.П. Дупленко; Нижегород. гос.техн. ун-т имени Р.Е.Алексеева. - Н.Новгород, 2015. – 105 с.
ISBN 978-5-502-00640-8 Данное пособие обобщает опыт работы кафедры иностранных языков Дзержинского политехнического института в области преподавания иностранного языка студентам заочного отделения технического университета. В пособии представлены разработанные преподавателями кафедры контрольные работы по английскому и немецкому языкам, а также материалы и задания для самостоятельной работы студентов. Пособие предназначено для студентов 1 курса заочного отделения всех специальностей.
Библ.: 7 назв.
УДК 371.3.811 ББК 74.261.7 ISBN 978-5-502-00640-8 © Нижегородский государственный технический университет им. Р.Е. Алексеева, 2015 © Дупленко Е.П., Белькович Н.В., Боброва О.Р.,Воронова Т.А., Кольцова Л.Ф., Павлычева Т.Н., Проворова Т.Г., 2015 ОГЛАВЛЕНИЕ
ОТ АВТОРОВ ………………………………………………………… 4 1. АНГЛИЙСКИЙ ЯЗЫК 1.1.КОНТРОЛЬНАЯ РАБОТА №1 (Т.Н. Павлычева)………….........5 1.2.КОНТРОЛЬНАЯ РАБОТА №2 (Л.Ф. Кольцова)………………. 12 1.3.КРАТКИЙ ГРАММАТИЧЕСКИЙ КОММЕНТАРИЙ…………. 21 1.4.МАТЕРИАЛЫ ДЛЯ ДОПОЛНИТЕЛЬНОГО ЧТЕНИЯ (Е.П. Дупленко)…….…………….......................... 27 1.5.ТЕСТЫ (Т.Г. Проворова)………………………………………… 37 2. НЕМЕЦКИЙ ЯЗЫК 2.1.КОНТРОЛЬНАЯ РАБОТА №1 (Т.А. Воронова)…………….. 57 2.2.КОНТРОЛЬНАЯ РАБОТА №2 (Т.А. Воронова)……………… 72 2.3.ТЕСТЫ (Е.П. Дупленко)............................... 92 СПИСОК ЛИТЕРАТУРЫ……………..…………………………......100 ПРИЛОЖЕНИЯ………………………………………………….... 101
ОТ АВТОРОВ
Данное пособие имеет целью организацию и контроль самостоятельной работы студентов заочного отделения с помощью системы контрольных работ и комментариев к ним, а также дополнительных материалов для чтения и тестовых заданий в области грамматики и лексики английского и немецкого языков. Пособие состоит из двух глав, каждая из которых включает в себя две контрольные работы, представленные в четырех или шести вариантах. Контрольные работы выполняют как обучающую, так и контролирующую функции в учебном процессе. Они основаны на учебном материале, подлежащем изучению на каждом этапе обучения, и позволяют осуществлять контроль уровня сформированности соответствующих компетенций. Дополнительные материалы для чтения могут использоваться как на аудиторных занятиях, так и во внеаудиторной самостоятельной работе студентов.
АНГЛИЙСКИЙ ЯЗЫК КОНТРОЛЬНАЯ РАБОТА № 1 Приступая к заданию 1 контрольной работы, повторите основные суффиксы, при помощи которых в английском языке образуются существительные, прилагательные и наречия. В задании 2 обратите внимание на времена группы Simple, Continuous, Perfect и их правильный перевод на русский язык. Перед выполнением задания 3 ознакомьтесь с информацией в кратком комментарии к контрольным работам в конце (см. п.1.3.).
Вариант 1 1. Напишите глаголы, соответствующие следующим словам, и переведите те и другие на русский язык: communication, discussion, government, invitation, development, life, meaning.
2. Составьте предложения, употребляя следующие слова и выражения: often, to start, to look after, an office, to have lunch. 3. Напишите словами следующие числительные: 533, 746, 812, 900; десятичные дроби 12,015; 25,765; годы: 1964, 1870: простые дроби 4/10, 7/8.
4. Ответьте на следующие вопросы: 1. What is your name? 2. Where are you from? 3. What do you do? 4. What course are you doing at university? 5. Who do you live with? 6. How old are you? 7. What are your special interests? 8. Are you married?
5. Переведите следующий текст письменно на русский язык и поставьте 5 вопросов к тексту.
Megalopolis The town of Shenzhen, just forty kilometers north of Hong Kong, is the world’s biggest building site. In 1982 it was a fishing village with two main roads, fields, and a population of 30,000. Now it has a population of 3 million. It is growing at an incredible speed. It is spreading north towards Guangzhou (also known as Canton) and west towards Macau. The Chinese government hopes that in less than ten years this area will be the biggest city on earth, with a population of 40 million people.
Shenzhen is a shocking place, like nowhere else on earth. It is a city with no boundaries and no centre. There are new concrete office blocks, factories, and housing blocks as far as the eye can see. Not just dozens of new buildings, not even hundreds, but thousands. And it is all happening so fast. It takes just six months to design, build, and finish a 60-storey, air-conditioned skyscraper.
China is changing. It is no longer a country where absolutely everything is owned and controlled by the state. Developers are welcome. The Chinese people seem to welcome dramatic change. They don’t worry about losing traditional ways of life. They want the new. As the posters on the sides of the highways shout, ‘Development is the only way’. Notes for the text: building site – строительная площадка incredible – невероятный skyscraper – небоскреб 6. Выпишите сказуемые из всех предложений, определите их временную форму, укажите их инфинитив.
Вариант 2 1. Напишите глаголы, соответствующие следующим словам, и переведите те и другие на русский язык: explanation, education, decision, enjoyment, help, warning, smile.
2. Составьте предложения, употребляя следующие слова и выражения: сelebrity, person, outstanding, politician, speech, governor.
3. Напишите словами следующие числительные: 141, 235, 617, 700; десятичные дроби 14,539; 37,894; годы: 1711, 1920: простые дроби 5/7, 2/4.
4. Ответьте на следующие вопросы: 1. What course are you doing at university? 2. Is it interesting for you to learn English? 3. Is it important to learn English nowadays? 4. What is the best way to remember new words? 5. Which subjects are the most complicated to you? 6. Who motivated you to go to university? 7. Do you like university atmosphere? 8. Which subjects are the most interesting to you?
5. Переведите следующий текст письменно на русский язык и поставьте 5 вопросов к тексту.
Dublin Dublin, a city over a 1,000 years old, is the cultural and historical capital of Ireland and the birthplace of many of the world’s most popular writers and musicians. James Joys and Oscar Wilde were both born here. But what’s it like?
It has always had a reputation as a vibrant and lively city, but since the economic boom of the 1990s, Dublin has got even better. Almost as famous for its lively nightlife as for its history, Dublin now looks more like other European cities, and has, in fact, become one of Europe’s most popular destinations. So, what can you do there?
The first place to go is Temple Bar. It has a great atmosphere, with shops, bars and cafes full of stylish young Europeans.
One of the best things to see is the Book of Kells. This is one of the oldest books in the world (over 1,200 years old!) and you can see it in the Trinity College Library, at the University of Dublin.
Also, you mustn’t miss the statue of Molly Molone, the city’s heroine. She was a beautiful, young fishmonger who died in 1636. Nobody knows how she died, but a famous song was written about her, and many say you can still hear the sound of her ghost walking the streets.
If you enjoy history, make sure you go to Dublin Castle. This castle, built between 1208 and 1220, lies in the heart of the city, and is surrounded by beautiful gardens. Notes for the text: birthplace – месторождения lively - оживленный 6. Выпишите сказуемые из всех предложений, определите их временную форму, укажите их инфинитив. Вариант 3 1. Напишите глаголы, соответствующие следующим словам, и переведите те и другие на русский язык: organization, improvement, employment, agreement, building, division, caring. 2. Составьте предложения, употребляя следующие слова и выражения: employ, job, company, successful, well-paid, increase. 3. Напишите словами следующие числительные: 245, 418, 529, 800; десятичные дроби 10,438; 16,754; годы: 1600, 2005: простые дроби 2/3, 4/7.
4. Ответьте на следующие вопросы: 1. Do you like travelling? 2. What place are you going to visit next summer? 3. You like taking pictures of the places you visit, don’t you? 4. What places do you like visiting in Nizhny Novgorod?
5. Are there many museums in Nizhny Novgorod. 6. What is your favorite place in Dzerzhinsk? 7. Is Dzerzhinsk a good place to live in? 8. What street do you live in Dzerzhinsk?
5. Переведите следующий текст письменно на русский язык и поставьте 5 вопросов к тексту.
Oxford What is so special about Oxford and Cambridge, the two oldest universities in England? Why do so many students want to study there?
Both of these university towns are very beautiful. They have some of the finest architecture in Britain. Some of their colleges and libraries are three, four and even five hundred years old, and are full of valuable books and precious paintings. Both towns have many lovely gardens, where the students can read and relax in the summer months.
Oxford is the older university of the two. The first of its colleges was founded in 1249. The university now has thirty-four colleges and about twelve thousand students, many of them from other countries. Oxford is, of course, famous for its first class education as well as its beautiful buildings. Some of the most intelligent men and women in the country live and work here. Oxford gives them what they need: a quiet atmosphere, friendly colleagues, and the four-hundred-year-old Bodleian library, which has about five million books.
It is not easy to get a place at Oxford University to study for a degree. But outside the university there are many smaller private colleges which offer less difficult courses and where it is easy to enroll. Many students in these private schools take business, secretarial or English language courses.
6. Выпишите сказуемые из всех предложений, определите их временную форму, укажите их инфинитив.
Вариант 4 1. Напишите глаголы, соответствующие следующим словам, и переведите те и другие на русский язык: belief, hope, suggestion, knowledge, dream, employer, worker. 2. Составьте предложения, употребляя следующие слова и выражения: mass-media, internet, online, newspaper, computer, site. 3. Напишите словами следующие числительные: 146, 317, 675, 900; десятичные дроби 15,777; 64,256; годы: 1995, 2014: простые дроби 1/2, 8/9. 4. Ответьте на следующие вопросы: 1. Do you have a personal computer? 2. What do you think of Internet? 3. How often do you use Internet? 4. What are your favorite sites? 5. Do you read news online? 6. What news attracts your attention? 7. What do you think of social sites? 8. Do you use Skype?
5. Переведите следующий текст письменно на русский язык и поставьте 5 вопросов к тексту.
Universities Nearly half of all Americans go on to college (a place of higher education) when they leave school. Some colleges are small, with only a few hundred students, but some of the big state universities are huge, with up to 60,000 students. There are more than 2,600 universities in the USA, and nearly all colleges have both men and women students.
You can study many interesting subjects at college, in short or long courses, but if you want to get a degree, you have to study for at least four years. Classes start in September and go on to early June with a break in the middle.
If you want to study in the States, write to your nearest American embassy.
In Britain, you can get a degree in a university, in a ‘polytechnic’, or in some of the many colleges of further education. There are 42 universities in Britain. There are also many colleges in Britain that teach English as a foreign language. Some have short courses (a few weeks or months), and some have one- or two-year courses.
University classes start in September and go on until mid-June with two breaks, one at Christmas, and one at Easter. Most degrees take three years, but some take four. If you want to study in Britain, write to your nearest British embassy or British Council office.
Notes for the text: huge – громадный degree – ученая степень
6. Выпишите сказуемые из всех предложений, определите их временную форму, укажите их инфинитив.
Вариант 5
1. Напишите глаголы, соответствующие следующим словам, и переведите те и другие на русский язык: usage, loading, start, distributor, dealer, announcement, presentation. 2. Составьте предложения, употребляя следующие слова и выражения: book, favorite, literature, author, library, detective.
3. Напишите словами следующие числительные: 237, 415, 770, 985; десятичные дроби 27,345; 51,456; годы: 1870, 2010: простые дроби 2/3, 4/5.
4. Ответьте на следующие вопросы: 1. Do you read a lot? 2. What kind of literature do you prefer reading? 3. Who is your favorite author? 4. What are you reading at the moment? 5. Do you go to the library? 6. Do you have a home library? 7. What kinds of books are there in your home library? 8. What do you think of Russian poesy?
5. Переведите следующий текст письменно на русский язык и поставьте 5 вопросов к тексту.
New York Everyone knows something about New York – the Statue of Liberty, the skyscrapers, the beautiful shops on Fifth Avenue, and the many theatres on Broadway. This is America’s cultural capital, and her biggest city, with a population of nearly eight million. In the summer it is hot and in the winter it can be very cold, but there are hundreds of things to do and see all the year round.
There are five ‘boroughs’ in New York: Brooklyn, the Bronx, Manhattan, Queens and Richmond. Only one of them, the Bronx, is not on an island.
Manhattan, the smallest island in New York, is the real centre of the city. Most of the interesting shops, buildings and museums are here. In 1605 the first Europeans came to Manhattan from Holland. They bought the island from the American Indians for a few glass necklaces, worth about $26 today.
Only 1,500,000 people live in Manhattan, but five million people work here every day. Many live in the suburbs and come to work on the subway.
Wall Street in Manhattan is the financial heart of the USA and the most important banking centre in the world. It is a street of ‘skyscrapers’, those incredible, high buildings which Americans invented, and built faster and higher than anyone else.
Like every big city, New York has its own traffic system. Traffic jams can be terrible, and it’s usually quickest to go by subway. The New York subway is easy to use and quite cheap.
Notes for the text: borough – район subway – метро 6. Выпишите сказуемые из всех предложений, определите их временную форму, укажите их инфинитив.
КОНТРОЛЬНАЯ РАБОТА № 2 Прежде чем выполнить задание 1, повторите правила образования страдательного залога, способы его перевода на русский язык. Для этого ознакомьтесь с информацией в кратком комментарии к контрольным работам (см. п. 1.3). Вариант 1
1. Перепишите следующие предложения; подчеркните в каждом из них глагол-сказуемое и определите eго видовременную форму и залог. Переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A l. I am writing a letter to a foreign firm now. 2. My son will be seven this spring and in September he'll go to school. 3. She bought this television last Sunday. 4. Our country buys a lot of different equipment from Great Britain. B 1. These books are sold everywhere. 2. Professor Brown was asked a lot of questions.
2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. We shall find many new theaters, clubs and cinemas in the capital of Russia tomorrow. 2. We obtain the nuclear fuel from uranium and thorium. 3. Soviet scientists have created many machines.
3. Перепишите следующие предложения, подчеркните Participle I и II, 1. The progress achieved by our country in industry is great. 2. We are waiting for him now. 3. I was impressed by the technical knowledge which was shown by your specialists in Moscow.
4. Перепишите следующие предложения; подчеркните в каждом из них 1. May we begin our lesson at 9 o'clock? 2. My daughter is fourteen but she can already cook very well. 3. I must sometimes work in the evening. 4. He will be able to reserve a room at a hotel. 5. Yesterday my friend had to come to his office early.
5. Прочитайте и устно переведите с 1-го по 4-й абзацы текста. Перепишите и письменно переведите 3,4-й абзацы.
James Watt James Watt, а famous inventor and mechanical engi-
Watt is known for his improvements of the steam
Watt continued his research and patented rotary engine In 1788 Watt invented the centrifugal or fly ball gov-
Вариант 2
1. Перепишите следующие предложения; подчеркните в каждом из них глагол-сказуемое и определите eго видовременную форму и залог. Переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A l. The secretary is looking through the mail now. 2. I read English newspapers every day. 3. He spent his holiday in the Crimea last year. 4. She will go there tomorrow. B 1. The dictation was written without mistakes. 2. He has been told everything. 2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. We call the last century the age of steam. 2. I visited the stations of the Moscow underground. 3. We have read about the achievements of research workers in the field of nuclear physics.
3. Перепишите следующие предложения, подчеркните Participle I и II, 1. We are having lunch now. 2. We were pleased to receive from you an invitation to the exhibition. 3. Reading his newspapers the old man fell asleep.
4. Перепишите следующие предложения; подчеркните в каждом из них 1. Can you make a reservation for the flight? 2. He is able to do it. 3. May I go to the post-office with Mike? 4. She had to stay at home because she did not feel well. 5. You must take your examination in English.
5. Прочитайте и устно переведите с 1-го по 4-й абзацы текста. Перепишите и письменно переведите 3,4-й абзацы.
Bill Gates – the - William Henry Gates was born in Seattle, Washington,
In the early 1980s, Gates led Microsoft's evolution
Much of Gates' success is based on his ability to
Вариант 3
1. Перепишите следующие предложения, подчеркните в каждом из них глагол-сказуемое и определите его видовременную форму и залог, переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A 1. Water boils at 100 degrees Celsius. 2. It was raining when he went out. 3. She has a headache. She has had a headache since she got up. 4. When I was a child, I didn't like sport. B 1. I was told to buy tickets. 2. Many new buildings will be built here.
2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. I must buy some bread. 2. People knew little about electricity in the past. 3. Russian scientists have solved many problem of nuclear physics.
3. Перепишите следующие предложения, подчеркните Participle I и II, установите функцию каждого из них, т.е. укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого. Переведите предложения на русский язык. 1. You can improve your knowledge without reading books. 2. Standing at the corner of the street he waited for the bus. 3. Have you told John about your new job?
4. Перепишите следующие предложения; подчеркните в каждом из них модальный глагол или его эквивалент. Переведите предложения на русский язык. 1. I had to go to the bank yesterday to get some money. 2. Come on. We must hurry. 3. I`ll be able to begin the work tomorrow morning. 4. I can translate this text, it is easy.
5. Прочитайте и устно переведите с 1-го по 5-й абзацы текста. Перепишите и письменно переведите с 1-го по 3-й абзацы текста. Foreign Languages Knowledge of foreign languages is especially important
It is the major international language for communica- Вариант 4 1. Перепишите следующие предложения, подчеркните в каждом из них глагол-сказуемое и определите его видовременную форму и залог, переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A 1. My sister gets up at eight o'clock. 2. He is playing the piano in the next room. 3. I shall see him soon. 4. She had dinner with my family yesterday. B 1. We were invited to a concert yesterday. 2. Flowers are sold in shops and in the streets. 2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. Lomonosov enriched science with experiment on atmospheric electricity. 2. We have leaned many interesting things from books. 3. A kerosene lamp gives little light.
3. Перепишите следующие предложения; подчеркните Participle I и II, и установите функцию каждого из них, т.е. укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого. Переведите предложения на русский язык. 1. She watched the children writing the dictation. 2. Entering the room, she turned on the light. 3. The text is translated. 4. Перепишите следующие предложения; подчеркните в каждом из них модальный глагол или его эквивалент. Переведите предложения на русский язык. 1. He will be able to help us. 2. Mike can go fast. 3. You may take my pen. 4. You must respect your parents. 5. He had to learn new words every day.
5. Прочитайте и устно переведите с 1-го по 5-й абзацы текста. Перепишите и письменно переведите с 1-го по 3-й абзацы текста. George Stephenson and Robert Stephenson George Stephenson was а British inventor and engineer. Не is famous for building the first practical railway locomotive.
Stephenson was born in 1781 in England. During his Robert Stephenson, the son of George Stephenson was
Не was born in 1803. Не was educated in Newcastle Stephenson built several famous bridges, including the Вариант 5 1. Перепишите следующие предложения; подчеркните в каждом из них глагол-сказуемое и определите его видовременную форму и залог. Переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A l. I went to bed at ten о'clock yesterday. 2. I go to bed at ten о'clock every day. 3. Nelly will leave for Moscow tomorrow. 4. She is drinking coffee now. B 1. Bread is eaten every day. 2. The dinner was cooked in time.
2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. They will read this book tomorrow in the evening. 2. We use electricity in everyday life. 3. We have not yet marked this town on the map.
3. Перепишите следующие предложения, подчеркните Participle I и II, 1. А letter sent from St. Petersburg today will be in Moscow tomorrow. 2. The girl writing on the blackboard is our best pupil. 3. This text was translated at the last lesson.
4. Перепишите следующие предложения; подчеркните в каждом из них 1. You must work hard at your English. 2. You may finish the work tomorrow. 3. Не will be able to visit you tomorrow. 4. Нс can speak Spanish. 5. We had to do it yesterday. 5. Прочитайте и устно переведите с 1-го по 3-й абзацы текста. Перепишите и письменно переведите 1,2-й абзацы текста. What Is a Computer? The term computer is used to describe а device made ● Hardware ● Software ● People ● Procedures ● Data/information
When one computer system is set up tо communicate
Software is the term used tо describe the instructions
The basic job of computer is processing information. Вариант 6 1. Перепишите следующие предложения; подчеркните в каждом из них глагол-сказуемое и определите его видовременную форму и залог. Переведите предложения на русский язык. В разделе B обратите внимание на перевод пассивных конструкций. A 1. She showed him the way to the metro station. 2. They didn’t turn off the light. 3. Someone wants you on the phone. 4. We will finish this work in time. B 1. This article was translated by his friend. 2. Some important facts were explained to him. 4. She was told to go home at once.
2. Напишите предложения в страдательном залоге и переведите их на русский язык. 1. They looked for the girl everywhere. 2. We must finish the work by tomorrow. 3. He gave the patients some good advice.
3. Перепишите следующие предложения; подчеркните Participle I и II и установите функцию каждого из них, т.е. укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого. Переведите на русский язык. 1. She went into the room, leaving the door open. 2. The man has stopped a taxi. 3. The article written the day before was corrected.
4. Перепишите следующие предложения, подчеркните в каждом из них модальный глагол или его эквивалент. Переведите предложения на русский язык. 1. You must take a taxi if you want to catch that train. 2. The lecture is to begin at nine. 3. He was able to do it yesterday. 4. She hopes she can find the job she is looking for. 5. Their travel by sea may be cheaper, but it takes a long time.
5. Прочитайте и устно переведите c1-го по 4-й абзацы текста. Перепишите и письменно переведите 3 и 4 абзацы.
James Prescott Joule James Prescott Joule, a famous British physicist, was born in 1818 in Salford, England.
Joule was one of the most outstanding physicists of his time. He is best known for his research in electricity and thermodynamics. In the course of his investigations of the heat emitted in an electrical circuit, he formulated the law, now known as Joule's law of electric heating. This law states that the amount of heat produced each second in a conductor by electric current is proportional to the resistance of the conductor and to the square of the current. Joule experimentally verified the law of conservation of energy in his study of the conversion of mechanical energy into heat energy.
Joule determined the numerical relation between heat and mechanical energy, or the mechanical equivalent of heat, using many independent methods. The unit of energy, called the joule, is named after him. It is equal to 1 watt-second. Together with the physicist William Thomson (Baron Kelvin), Joule found that the temperature of gas falls when it expands without doing any work. This phenomenon, which became known as the Joule -Thomson effect, lies in the operation of modern refrigeration and air-conditioning systems.
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