8.4.4Finish sentences 1. The atom is made up of 2 The nucleus consists of a number of.
3 The atom is neutral when 4 A positively charged body is 5 A negatively charged body contains 6 The conductor has equal .7 The battery causes a potential 8 This electron flow
Match the sides
| .NATURE OF ELECTRIC CURRENT 1.In the modern conception of the constitution of matter it is composed of atoms. 2.The atom is made up of a positive nucleus surrounded by negative charges of electricity, called electrons, which revolve about the nucleus at tremendous speeds. 3. The nucleus consists of a number of protons, each with a single positive charge, and, except for hydrogen, one or more neutrons, which have no charge. 4.The atom is neutral when it contains equal numbers of electrons and protons. 5.A negatively charged body contains more electrons than protons .6. A positively charged body is one which contains fewer electrons than its normal number. 7.When the two ends of a conductor are connected to two points at different potentials, such as the terminals of a battery, we say that there is an electric current in the conductor. 8.What actually happens? 9.The conductor has equal numbers of positive and negative charges in its atoms, and we want to know how the charges can be made to produce a current .10. The atoms in metals are packed so closely that they overlap to some extent, so that it is comparatively easy for the outer electrons to pass from one atom to another if a small force is applied to them. 11.The battery causes a potential difference between the ends of the wire, and thus provides forces that make the negative electrons in the wire move toward the point of higher potential. 12. This electron flow toward the positive electrode is the electric current. 13.Naturally +materials differ considerably in the ease with which electrons can be made to migrate from atom to atom. 14.The current will not flow unless there is an electric circuit. 15.The magnitude of the current depends simply on the rate of flow of electrons along the conductor. | 1 , , , . 2 , ,, , , . 3 , 4 5 ? 6. , , , , 7 - 8 , ,, , , . 9 , , . 10 , , , 11 . 12 , 13 - , , 14 , . 15. , |
8.4.6Answer the questions 1. What is an atom? 2. When is the atom neutral? 3. What is a negatively charged body? 4. What is a positively charged body? 5. What is an electric current? 6. What does the magnitude of the current depend on?
|
|
|
8.4.7.Form sentences using the following word combinations:
a negatively charged body; from negative to positive;from one atom to another; a number of protons; a single positive charge; equal number of electrons and protons; to differ in the ease
III. Use the sentence in all the forms and tenses adding suitable adverbial modifiers where necessary:
The electric current flows from the negative to the positive terminal.
X. Summarizing XI. Homework- read and translate. Learn the words and terms
| NATURE OF ELECTRIC CURRENT 1.In the modern conception of the constitution of matter it is composed of atoms. 2.The atom is made up of a positive nucleus surrounded by negative charges of electricity, called electrons, which revolve about the nucleus at tremendous speeds. 3. The nucleus consists of a number of protons, each with a single positive charge, and, except for hydrogen, one or more neutrons, which have no charge. 4.The atom is neutral when it contains equal numbers of electrons and protons. 5.A negatively charged body contains more electrons than protons .6. A positively charged body is one which contains fewer electrons than its normal number. 7.When the two ends of a conductor are connected to two points at different potentials, such as the terminals of a battery, we say that there is an electric current in the conductor. 8.What actually happens? 9.The conductor has equal numbers of positive and negative charges in its atoms, and we want to know how the charges can be made to produce a current .10. The atoms in metals are packed so closely that they overlap to some extent, so that it is comparatively easy for the outer electrons to pass from one atom to another if a small force is applied to them. 11.The battery causes a potential difference between the ends of the wire, and thus provides forces that make the negative electrons in the wire move toward the point of higher potential. 12. This electron flow toward the positive electrode is the electric current. 13.Naturally +materials differ considerably in the ease with which electrons can be made to migrate from atom to atom. 14.The current will not flow unless there is an electric circuit. 15.The magnitude of the current depends simply on the rate of flow of electrons along the conductor | 1. . 2. , , , . 3. , ,, , , . 4. , . 5. , .6. - , , . 7. , , , . 8. ? 9. , , , . 10. , , , , . 11. , , .12. - . 13. , . 14. , . 15. . |
6-3
|
|
|
200.
( )
:
:
: .
:
, ,
, , , . .
: (, , , , , ,. )
: (, , , , , , , )
̳ :
Գ,
.
,, 泻. ..
: (, , ,
) ,
˳:
1972
: (, )
ղ
I. :.
Who is on duty today?
Who is absent?
What date is today?
What day of week is today?
II. :
Todays topic is Electrical current. :
to recognize new words and expressions,
to understand their meaning and operate by them discussing the text;
to identify main ideas and details from the text;
to participate in common conversational exchanges on the topic of today's lesson.
III. :
The knowledge of this topic will increase your outlook and knowledge of some interesting facts about metals, their place in the life, as future specialists you must be well-educated, cultured people. This information will help you in your future profession
IV. .
Grammar tests:
V) :
Watch the short video. Try to understand and answer the questions
VI) O :
|
|
|
I'll check your homework.
p) .
VII.
VIII.
1 Introduction with a new words
2 Exercises
3. Introduction with a new topic
4 Exercises
5. Reading the text
IX Homework
X.Summarizing
ղ
I. :.
Who is on duty today?
Who is absent?
What date is today?
What day of week is today?
II. :
Todays topic is Electric current
By the end of the lesson you should be able:
to recognize new words and expressions,
to understand their meaning and operate by them discussing the text;
to identify main ideas and details from the text;
to participate in common conversational exchanges on the topic of today's lesson.
III. :
The knowledge of this topic will increase your outlook and knowledge of some interesting facts about metals, their place in the life, as future specialists you must be well-educated, cultured people. This information will help you in your future profession
IV. .
Grammar tests:
V) :
Watch the short video. Try to understand and answer the questions
VI) O :
I'll check your homework.
q) .
VII.
VIII.
1 Introduction with a new words
2 Exercises
3. Introduction with a new topic
4 Exercises
5. Reading the text
IX Homework
X.Summarizing
ղ
Read and remember
| 1.flow 2.direction 3.current 4.is known 5.d. c. that is. direct current. 6.The simplest source 7.power 8.negatively charged terminal 9.the letters 10.. stand for 11.a. c--- alternating current 12.use 13. lightning 14.purposes 15.go through 16.apply 17.continuous current 18.construct 19.we cannot imagine 20.is familiar with 21.used 22.devices 23.vacuum cleaners, 24.refrigerators 25.washing machines 26.trains 27.owing 28.numerous 29. application. 30.only | 1nb 2 3 4 5. d. c.- 6 7 8 9 10 11 12, 13 14 15 16 17 18 19 20 21 22 23 24 25 26. 27 28 29 30. |
