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Task 3. Complete the sentences using the words in the box. You will need to use one word twice.
compression, deformation, elongation, extension, tension
1. A stretching force is called
2. A crushing force is called
3. Extension is also called
4. Tension causes .. or
5. Tension or compression cause
Task 4. Match the tivo parts to make correct sentences.
1. If a material is stiff
2. If a material is brittle
-
3. If a material is plastic
4. If a material yields
5. If a material fractures
6. If a material is elastically deformed ...
a) it is malleable and/or ductile.
b) it has low elasticity and low tensile strength.
c) it has low elasticity and high tensile strength.
d) it has been extended to a point before its elastic limit.
e) it has been loaded beyond its ultimate tensile strength.
1) it has been significantly plastically deformed, but not broken.​

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Vinri
Vinri
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1. in japan people always take off their shoes before they enter the house.

2. In arabic countries people never eat when they are standing or walking.

3. People never give yellow flowers in Bulgaria

4. Russians touch other people's clothes and often ask where people got them (не уверен на этом.)

5. Swiss watches sometimes cost a lot of money

6. People in Germany hardly ever give flowers wrapped in paper.

7. In China watches are usually bad presents.

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