Итоговый урок 3 курс по специальности "Монтаж, наладка и эксплуатация электрооборудования промышленных и гражданских зданий"

Департамент образования Ивановской области Областное государственное бюджетное профессиональное образовательное учреждение «Кинешемский политехнический колледж»

Итоговый урок 3 курс СПО по специальности "Монтаж, наладка и эксплуатация электрооборудования промышленных и гражданских зданий " 

ELECTRICITY

Подготовила Ж.А. Юрицкая, преподаватель английского языка

Think of some words which remind you about electricity.

ELECTRICITY

Match the word and its definition.

current

electricity

circuit

power

generator

magnet

turbine

- A machine for producing electricity

- Energy or force that can be used to do work

- A substance able to attract iron, either natural or by means of electric current

- A flow of electricity through something or along a wire or cable

- A supply of electric current for heating, lightning, etc

- An engine or motor whose driving-wheels turned by a current of water, steam or gas

- A closed path for an electric current

Click on any of the vocabulary words below to hear them pronounced and used in a sentence. Translate these sentences.

ELECTRICITY

GENERATOR

ELECTROMAGNET

Watch the cartoon and try to remember as many details as possible

Now read some information and compare it with the information from the cartoon. Is there something new for you?

    The ancient Greeks knew about static electricity back

around 500 BC. They had discovered that a gold colored

material called amber could be made to attract small objects,

like bits of a feather, when the amber had been rubbed with

a piece of fur.

Ben Franklin discovered the electricity in

lightning in 1752, although nobody knows exactly how he

did his experiment. Franklin was a careful scientist, and

would have known that flying a kite in a thunderstorm could

have deadly effects,. Both the ancient Greeks

and Ben Franklin had discovered examples of naturally

occurring electricity. Their discoveries were amazing in

their time, but not really useful yet. One of the first practical

uses of electricity occurred in England in 1858, when

electricity was first used to power the lamp in a house.  

Are you good at electricity? Match the objects with their symbols.

Cell, 6V battery, wire, bulb, switch, ammeter, voltmeter, ohmmeter

a b c d

e f g h

Read some more information and complete the following diagram.

Electricity is used in homes, and also to power industry, and to provide communication and transportation. Home uses of electricity include heat and light, as well as power to run appliances and games. Factories use electricity to power the machines used to produce all kinds of goods. Communication systems that depend on electricity include telephone service, television and radio, and the Internet. There are streetcars and subways powered by electricity. Other types of transportation, such as planes and ships, depend on electricity for navigation equipment.

A

P

P

L

I

C

A

T

I

O

N

E

L

E

C

T

R

I

C

I

T

Y

ELECTRICITY

Electricity occurs in 2 different forms

Static

Is stationary

E.g. Brush your hair

Current

Flows around circuit

E.g. turn on light

Match the words with the opposite meaning

to increase

to turn out (of)

closed

step-down

alternating

final

conductor

conduction

variable

disadvantage

parallel

negative

To turn into (on)

Insulator

To decrease

Direct

Initial

Opened

Step-up

Advantage

Series

Positive

Resistance

Constant

Static Electricity

• Occurs with materials which are insulators
• Rubbing adds or removes electrons
• Object becomes charged
• Like objects repel, unlike attract

Rubbing insulator removes or adds electrons so object is charged creates electrical force field so other objects are attracted or repelled

Rub feet on carpet and touch door handle

Brush hair stands up

Socks stick to nylon in tumble drier

Try expt charge plastic rod pick up paper, hair, bend water, balloon hair stand up, stick to wall, try against lightbulb

Van der graff

Video

Current Electricity

Electrons flow through a conductor

Negative to positive

Circuit = continuous path for electrons to flow

Needs energy supply

Energy user

Find the English equivalents in B to the Russian words in A. A B

Rectifier

Capacitor

Выпрямитель

Condenser

Winding

Обмотка

Insulator

Voltage

Secondary

Первичный

Early

Primary

To transmit

To store

Передавать

To keep

Нить накала

Coil

Filament

Gap

Частота

Resistance

Frequency

Alternation

Direct

Alternating

Different

Переменный

Function

Resistance

Сопротивление

Trouble

Value

Емкость

Main

Capacity

Измерительный прибор

Insulator

Meter

Current

Battery

Resistor

Terminal

Клемма

Line

Short

Charge

Заряд

Voltage

Current

Circuit

Цепь

Trouble

Voltage drop

Distance

Падение напряжения

Open

Plane

Обрыв

Short

advantage

trouble

Повреждение

load

Types of Current

• AC  Alternating current  charges continuously change direction forward and back at 60 Hz
• DC  Direct current  charges move in one direction

Let’s have fun. Click on the address to solve a quiz

http://www.neok12.com/quiz/ELECTR01

http://www.neok12.com/quiz/ELECTR04

http://www.neok12.com/quiz/ELECTR02

http://www.neok12.com/quiz/ELECTR05

Complete the diagram on generating electricity

COIL

OIL

GAS

ELECTRICITY

GEOTHERMAL

POWER

Compare the world electricity generation in 2002 and 2030 using the model:

Generation of electricity from gas in 2030 will be higher than in 2002.

Hydroelectric power plants

Hydroelectric power plants use water flowing directly through

the turbines to power the generators.

Describe the production process and this hydroelectric power plant.

NUCLEAR POWER PLANT

In Russia there are now 10 active power plants. This one produces 1/7

of the overall electricity outcome of Russian nuclear power plants, so it is a big one.

In a nuclear power plant, nuclear reactions create heat to heat water, which turns into steam, which goes through a turbine, which spins...turning the copper armature inside the generator and generating an electric current

TIDAL POWER

There are a lot of energy in waves on the sea. But it is not easy to get it.

A wave power station needs to be able to stand really rough weather,

and yet still be able to generate power from small waves. This source

of energy is renewable – the waves will cause whether we use them or not.

SOLAR POWER

Solar power is renewable. It is used for heating houses. Solar cells make electricity from sunlight. Solar cells are expensive. Solar power isn’t much use unless you live somewhere sunny. It doesn’t cause pollution and doesn’t need fuel.

Wind Power

Wind generators use wind to turn turbines that are hooked up to a generator.

Wind power is renewable as well. It doesn’t cause pollution, doesn’t need fuel.

It is necessary to put generators them where winds are reliable.

GEOTHERMAL ENERGY

The first geothermal power station was built in Italy, and the second was in New Zealand. The centre of the Earth is about 6000 degrees Celsius - hot enough to melt rock. Even a few kilometres down, the temperature can be over 250 degrees Celsius. In general, the temperature rises one degree Celsius for every 36 metres you go down. In volcanic areas, molten rock can be very close to the surface.

Describe the work of such power station .

Find some advantages and disadvantages of different ways of generating electricity

ADVANTAGES

DISADVANTAGES

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-

-

-

-

-

-

-

-

-

-

-

-

-

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Study the picture and describe in writing how electricity is produced and then transmitted to our homes.