V. Add the missing letters to the words below. Translate into Ukrainian.

1. p . . m . . b . l . . y 7. s a . . r . . i o n

2. s . r . . k . g . 8. c o . . r . s s . . n

3. d . . s . . y 9. p l . . t . c . t .

4. s t . . n g . h 10. e . a s . . c . . y

5. l . . g . t u . . n . . 11. m . i . t . r .

6. v . . o s . t y 12. h . . d . e . s

VI. Match the words with their definitions.

1. hardness a) resistance to being pressed together

2. shearing strength b) resistance to forces which try to deviate a piece

of wood from its straight line without breaks

3. stiffness c) resistance to cutting, sawing, driving nails or

screws

4. bending strength d) resistance to an action of parallel but opposing

forces similar to that of a pair of scissors

cutting paper

5. tensile strength e) resistance to bending

6. compression strength f) resistance to be pulled apart in the direction

of grain (fibres)

VII. Match the words with the correct prepositions from the list below. If you are

not sure, look at the text to check. Illustrate the usage by making up your

own sentences.

From on within by (2) in to below

1. is determined __ 5. is influenced __

2. to depend __ 6. to be free __

3. to result __ 7. __ the same axis

4. is important __ 8. __ fibre saturation point

VIII. Complete the sentences using the words and word combinations from the

following list.

to measure, rate of loading, of a sound wave, to resist,

shrinkage, the treatment, resistance, to recover, is determined,

failure, to bend, stiffness, location, is removed, the property

1. The strength of wood depends on _____, size and _____ of knots.

2. Elasticity is _____ of wood _____ its size and shape after the loading _____.

3. The velocity _____ through wood can be used _____ mechanical strength

and _____.

4. The hardwoods are easy _____.

5. The strength of wood is the ability _____ mechanical forces without _____.

6. The thermal conductivity of wood _____ by density and moisture content.

7. _____ can result in warping, checking, splitting.

8. _____ by chemicals is important to fire- and decay _____.