416593
| Question | Answer |
| Chapter 1 | Material Properties |
| What are Mechanical properties | How objects reply to a force |
| What is meant by the strength of a material | It is its ability to withstand an applied force without breaking or permanently bending |
| Mechanical properties What does this mean? * | Properties of the material, including Str, Har, Dur, Dens, Toug,Brit, Mall, Duc-icity, Elasticity |
| Name 5 types of strengths | Bending, compression, sheer, tension, Tortion (explain page 10) give examples |
| What is durability | To resist wear and tear |
| When is a acryilic not brittle | Acryilic is less brittle unless it is heated then it can be moulded |
| Important Properties when shaping and moulding products are malleability, elasisity, ductability. What does Malleability | Malleability is where materials can be permanently deformed if hammered rolled or pressed |
| Ductability | Materials ability to be cold deformed by being pulled or pencilled, Heat changes things |
| Physical Properties | 1 |
| What are physical properties | Unaltered by application force or heat this is seen in some plastics |
| What is fusability-what process is it important in | Fusability is where something is heated into a liquid and it is used in smelting and fabrication |
| What does fabrication mean | Fabrication is the joining together of pieces weather or not they are the same material |
| What does insulator mean | Where heat is brought into the material and does not pass through, poor conducter ie, plastic cup |
| Name good electrical conductors and good insulators | Gold, silver, copper/cotten, cermic, wood, plastic |
| What is a semi-conductor what does it meani.e silicon | i.e silicon is usually a poor conductor but on some circumstances it allowes a current to flow |
| What is mechanical properties and what is physical properties | Refer to page 10 and 11 |
| m | m |
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