Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Tutorial for Masters.doc
Скачиваний:
0
Добавлен:
01.07.2025
Размер:
1.94 Mб
Скачать

I. Read the text. Choose the most suitable heading from the list (a-g) for each part (1-5) of the text. There are two extra headings which you do not need to use.

  1. The Interdependence of the Two Fields.

  2. Physical Characteristics of Electromagnetic Waves.

  3. Different Types of Radiation.

  4. Electromagnetic Waves Propagation.

  5. Ampere’s Law.

  6. The Definition of Electromagnetism.

  7. The Development of Quersted’s Theory.

II. Read the text. For statements (6-15) choose “True” if the statement is true according to the text, “False” if the statement is false:

  1. Electromagnetism is the physics of the electromagnetic field exerting a force on charged particles.

  2. The concept of electricity was considered at the beginning of the nineteenth century.

  3. Hans Christian Quersted was the first to discover electromagnetism.

  4. Michael Faraday and Joseph Henry made the discovery of electromagnetic induction.

  5. Maxwell explained electromagnetic waves by joining electricity, magnetism and optics into one theory.

  6. The origin of the electromagnetic waves is microwaves.

  7. When one charge starts to vibrate, the second one undergoes the influence of the magnetic field.

  8. In vacuum electromagnetic waves have the velocity of light.

  9. There is the interrelation between frequency, wavelength and velocity of electromagnetic waves.

  10. Vibration wave is connected with frequency.

III. Read the text. For questions (16-20) choose the correct answer (a, b, c or d).

  1. Electromagnetism is …

    1. the power of electrically charged particles interaction.

    2. the acceleration of charges in a discharge tube.

    3. the propagation of waves in space.

    4. the theory of light.

  2. Hans Christian Quersted was the first who discovered …

    1. electromagnetic waves.

    2. the cause of magnetism.

    3. alternating electric current.

    4. the speed of light.

  3. James Maxwell’s theory was …

    1. the beginning of electromagnetism

    2. the branch of optics.

    3. the development of gamma rays theory.

    4. the result of previous discoveries.

  4. An accelerated charge can change …

    1. its speed and direction.

    2. such medium as glass.

    3. radio waves.

    4. a direct charge.

  5. The fastest speed of electromagnetic waves is …

    1. in air.

    2. in salt water.

    3. in vacuum.

    4. in water.

IV. Match (21-30) with their definitions (a-l). There are two definitions that you do not need to use.

21.

to define

A.

the emission or transfer of radiant energy

22.

to accelerate

B.

to produce electricity

23.

radiation

C.

to move or swing from side to side regularly

24.

to propagate

D.

the total amount of electricity

25.

interdependent

E.

to describe the nature, or essential qualities of smth.

26.

simultaneous

F.

an intervening substance

27.

to oscillate

G.

relating to two or more things dependent on each other

28.

to generate

H.

to correspond to

29.

medium

I.

to make or become greater in size

30.

to equal

J.

to move through in the form of a wave

K.

to increase the velocity of smth.

L.

occurring, existing, or operating at the same time

Supplementary Tasks :

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]