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1.5. Make a list of collocations with the words below and use them in sentences of your own.

Example: motion → molecular motion, motion of the fluid Molecular motion is induced by the heat.

appearance particle environment experience scale matter force reaction

field structure behaviour

1.6. Mind the translation of the Passive Voice.

1. The charge of an atom is not affected by the number of neutrons present, but depends on the balance between electrons and protons.

2. The results of the third experiment, unlike the other two, have been affected by ambient temperature.

3. The program will be effected with the aid of numerical analysis technique.

4. Simulating the reaction was not effected for lack of suitable computing devices.

5. The angular momentum of an object is proportional to its rotational velocity and also influenced by the distribution of its mass.

6. Sound levels are acted upon by the loss of energy upon reflection.

7. In atomic reactions the appearance and disappearance of an electron-positron pair is accompanied by an energy change of 10" electron volts, that is more than 10^ times greater than the energy available in chemical reactions.

8. A transition from one phase to another (solid, liquid, vapour) is accomplished by a change in temperature, pressure, density and volume.

9. A great deal of research is being done to reduce the expenses of mini computer production.

10. At Fermi lab the main proton synchrotron has been modified by addition of superconducting magnets that will double its energy.

11. The immediate effect of temperature has not yet been accounted for.

12. The system of molecules is -governed by the laws of thermodynamics and statistical mechanics, where an important role is ascribed to temperature and entropy.

13. We are guided by the laws of conservation and transformation of energy in describing natural phenomena.

14. An appreciable distortion of the signal has been brought about by the environmental conditions.

15. In spite of the unfavourable operating conditions appropriate precautions arc taken to avoid the trouble.

16. Care is taken to overcome the difficulties in adjusting the device.

17. Moreover, no provision has been made to prevent the leakage of plasma.

18. We are perfectly aware of the fact that this theory will be dealt with in the course of bulky calculations.

19. No advantage can be taken of this law providing it is applied to low temperature.

20. In this event there are several apparent discrepancies but only a few are referred to here.

21. The principle that constitutes the basis of programming on a computer has been frequently referred to.

22. Metallic conductors cooled to a very low temperature have been referred to as superconducting.

23. This principle is referred to as a guiding principle of programming and may be relied upon in writing a program.

24. The spin vector of these elementary particles can have only two directions which are usually referred to as "up" and "down".

25. The abrupt disappearance of all resistance to electric current in some metals at very low temperature has been referred to as superconductivity.