7. Match the notions and their definitions and supply examples.

1) motion momentum, force, gravitation, lever.

2) attraction of the Earth as a result of its rotation around its axis, a device for lifting loads, any action that causes the change of the rate or direction or speed of bodies, the product of mass and velocity.

8. Form the nouns denoting object, action, process, or occupation with the sufffixes: -tion, -ing, -er, -or, -ment to use in definitions.

exploit, construct, produce, train, design, equip, refine, build, educate, operate, make, draw, transmit, educate, develop, apply, count, provide, conclude, convert, trans­form, compress, transform, to work, to teach, to

lecture, to read, to write, to discover, law.

9. Match the verbs and nouns to speak on the scientific achievements of the past and present.

1) provide, state, give, supply, discover, make, invent, develop, consider, achieve, cause, create, prove, argue, take, suggest, deal with, treat.

2) law, theory, discovery, invention, problem, motion, decision, explanation, the facts, machine, reasons, conclusion, measurements, experiments, concept, perspectives, mechanism, results, examples.

10. Group the synonyms.

discover, put out, make, count, reach, device, find out, treat, relate, concern, motion, explain, dynamics, cause, try, calculate, achieve, supply, construct, stop, manufacture, enterprise, attempt, ground, create, provide, build, instrument, graduate, receive, produce, deal with, design, cease, compute.

11 .A) Complete the sentences.

1. Adding numbers we obtain ____. 2. Studying mechanics we master____. 3. Designing new machines we develop____. 4. The solution suggested gives grounds for ____. 5. The physical laws applied in practice allows us____. 6. Treationg mechanics mathematically we can ____.

7. Providing the proofs of the theory we must____. 8. The distance divided by the time allows to obtain____. 9. Multiplying the average speed by the time, we will obtain ____. Increasing the speed we ____.

b) Express the same idea using the prepositions and conjunctions: when, as, after, if, since, because, that is why, therefore.

12. Discuss the following problems with your groupmates at the young scientists’ conference using the given words and expressions.

1. History of mechanics. 2.Branches of mechanics.3. The most significant achievements of the famous scientists – discoverers and inventors: Korolyov, Tsiolkovsky, Paton, Yablochkov, Popov, Curie, Kovalwevska, Lobachevsky, Nobel, Gagarin, Diezel, Mendeleyev.

agree, exactly so, sure, for sure, to be sure, surely, there is no doubt about it, undoubtedly, certainly, naturally, evidently, it is a proved fact.

disagree, it is quite wrong, It is absolutely the other way out, I doubt it, it may not be so, I object it, it is not true to fact, it is contradictory, it is ungrounded, it requires proofs / grounding

13. Revise the mathematical signs:

1)Read and learn the arithmetic operations.

a = b – a equals to b, c:d – c devided by d, c + f – c added to f,

9 ∙7= – 9 multiplied by 7 is (is equal to, equals to, makes, gives) minus 9, ⅓ — ¾ – three fourths substracted from one third, a² – a squared, aⁿ – a to the power of n, – cube root, 3.68 – 3 point six eight, sin –

sinus, cos – cosine, (a + b ) – in brackets, bracketed, 10% – ten percent, 5°

– 5 degrees.