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Materials and Their Properties
Quick questions on Metals, ferrous and non-ferrous, explained: O-Level Design and Technology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are ferrous metals?Show answer
Ferrous metals contain iron. They are usually magnetic and, unless protected, they rust (corrode) when exposed to moisture and air. Common examples:
What are non-ferrous metals?Show answer
Non-ferrous metals contain no iron. They are usually non-magnetic and resist corrosion far better than plain ferrous metals. Common examples:
What are alloys?Show answer
An alloy is a metal made by mixing two or more elements, at least one a metal, to improve or combine properties. Alloys are made because pure metals often lack what a job needs. Examples:
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