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Англ. мова. Київ, 2009. Посібник для механіків,...doc
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Vocabulary

in terms в термінах

awkward незграбний

avoid запобігати

by means of засобом

obey to the law підкорятися закону

magnitude величина

axes вісь

observe спостерігати

alter змінювати

displace зміщувати

finger палець

the thumb points великий палець вказує

the right-hand rule правило правої руки

rotate обертатися

arrow стріла

3. State if the following sentences are true to fact or false. Prove your point of view. Use the words.

right, so it is, absolutely wrong, I object, (dis)agree, true to fact, quite on the

contrary, (not) correct, it may be so, (im)possible, it can(’t) be so because, unreal, according to, it is generally known that, the fact is, the thing is that, as far as I know, I am sure that.

1. All physical quantities are directional. 2. Directional quantities are called scalars. 3. The length of the arrow is a measure of the magnitude of

the vector, the direction of the arrow indicate its direction. 4. The di­rection of the road must not be taken into account. 5. The ordinary rules of arithmetic are not applicable to vectors. 6. The resultant force will be one kilogram in the direction towards Peter. 7. The length of the diagonal is obtained by the Newton equation. 8.To find the resultant force graphically it is not necessary to complete the parallelogram.

4. Find in the text the equivalents of the Ukrainian words and

expressions.

за допомоою стрілочок, вказувати напрям, система координат, величина, рівняння, позначати. підлягати закону, спостерігач, зміщувати, правило правої руки, вказувати у напрямку, взаємно перпендикулярний, виконувати дію, виконувати рух, можна запобігати, виконувати математичну дію.

5. Fill in the gaps and learn the abstract by heart.

quantities, arrow, magnitude, direction, straight, applicable, resultant, measure, torque, counterforces, obeying, rigid, dimensions, neglect, tension, support.

Some physical ____ have no idea of direction associated with them. One can represent these vector quantities graphically by means of ____. The length of the arrow is a measure of the ____ of the vector, the direction of the arrow indicate its ____. Suppose we walk two kilometres along a

____ road.Thus, the ordinary rules of arithmetic are not ____ to vectors. Two separate forces of 3 and 4 kg act on it at right angles.In any case, to find the ____ force graphically it is necessary to complete the parallelogram and ____ the length of the diagonal. For a body to be in equilibrium, there must be no net ____ acting on it. The body's own tendency is to restore the deformation has the effect of applying ____ , thus ____ Newton's

third law. Calling a body ____ means that the changes in the ____ of the body are small enough to be neglected, even though the force produced by the deformation may not be ____ A suspension bridge illustrates the use of ____. The weight of the span and any traffic on it is ____ by cables.