Choosing the Best Material for a Job Flashcards

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What does it mean to choose the best material for a job?

It means picking a material whose properties make it most suitable for how it will be used.

You might look at strength, density (how heavy it is), and corrosion resistance.

High strength is important so the material does not bend or break under large loads.

Low density makes the vehicle lighter, so it needs less fuel and is cheaper to run.

Copper has high electrical conductivity, so it lets electricity flow through it easily.

Polymers are light, can be shaped easily, and do not corrode like many metals do.

Alloys are often stronger and more resistant to corrosion than pure metals.

If a material resists corrosion, it will not rust or rot quickly, so it lasts longer outside.

The material must be cheap enough so the product can be made and sold at a good price.

A trade-off is when you choose a material that is better in one way but worse in another, such as cheaper but less strong.