3 FORCES ON MATERIALS


3.3 Extending skills


stress within words • using information sources • reporting research findings


A≤Listen to some stressed syllables. Identify the word below in each case. Number each word. Example:


You hear: 1 po /pəυ/ You write: alloy


aluminium cantilever component copper


deformation 1


ductile elastic


elasticity


equilibrium fatigue flexible


B Where is the stress in each multi-syllable word in Exercise A? 1 Mark the stress. 2 Practise saying each word.


C Work in pairs or groups. Define one of the words in Exercise A. The other student(s) must


find and say the correct word.


D Look at the picture of a car. 1 Make a list of components. 2 State the materials used to make each component. 3 Give the reason for using each material.


Components Materials Why? tyres


rubber flexible E Before you attend a lecture, you should do some research.


1 How could you research the lecture topics on the right?


2 What information should you record? 3 How could you record the information?


F You are going to do some research on a particular lecture topic. You must find:


1 a dictionary definition 2 an encyclopedia explanation 3 a useful Internet site


Student A • Do some research on mechatronics. • Tell your partner about your findings.


Student B • Do some research on torque. • Tell your partner about your findings.


25 Faculty: Engineering


1 Stress, strain and elasticity 2 Aluminium alloys: a brief history


3 Mechatronics: the future of intelligent machines


4 Torque


fracture original plastic react rigid


rubber


1


1


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