Ferrous vs Non-Ferrous Metals

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Questions and Answers

What is the main difference between ferrous and non-ferrous metals?

  • Non-ferrous metals are harder than ferrous metals.
  • Non-ferrous metals are magnetic, while ferrous metals are not.
  • Ferrous metals are lighter in weight than non-ferrous metals.
  • Ferrous metals contain iron, while non-ferrous metals do not. (correct)

Which type of steel is known for its resistance against rust?

  • Wrought iron
  • Stainless steel (correct)
  • Carbon steel
  • Cast iron

Which metal is often used as a coating to prevent steel from corroding?

  • Aluminium
  • Brass
  • Tin (correct)
  • Silver

What is one of the main uses of copper?

<p>Electrical wiring (A)</p>
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Which non-ferrous metal is highly ductile and malleable?

<p>Copper (B)</p>
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What property makes aluminium ideal for applications in aerospace?

<p>Lightweight (A)</p>
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What is the main difference between ferrous and non-ferrous metals?

<p>Ferrous metals contain iron while non-ferrous metals do not. (B)</p>
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What historical event marked the end of the Stone Age and the start of the Copper Age?

<p>Discovery of copper (B)</p>
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Which type of metal began to be used more commonly starting around 1,200 BC?

<p>Ferrous metals (A)</p>
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Why is stainless steel resistant to rusting compared to other ferrous metals?

<p>Because of the chromium in its composition (A)</p>
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Which property makes ferrous metals like stainless steel ideal for architectural and structural uses?

<p>Tensile strength (D)</p>
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What is an alloy?

<p>A mixture of metal with an element to enhance properties (B)</p>
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Flashcards

What are ferrous metals?

Metals that contain iron.

What are non-ferrous metals?

Metals that do not contain iron.

What is stainless steel?

A type of steel known for its resistance to rust and corrosion due to its chromium content.

What is Tin?

A metal often used as a protective coating on steel to prevent corrosion.

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What is copper used for?

A metal widely used in electrical wiring due to its high conductivity.

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What are the properties of copper?

Highly ductile and malleable, making it easy to shape into wires and sheets.

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Why is aluminium used in aerospace?

Its lightweight nature makes it ideal for aircraft construction.

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What is the Copper Age?

An event marked by the discovery and use of copper for tools and other implements.

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When did ferrous metals become more common?

Metals that began to be used more commonly around 1,200 BC due to advancements in smelting.

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Why doesn't stainless steel rust?

The presence of chromium in its composition forms a protective layer that prevents rust.

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Why is tensile strength important for architecture?

The ability to withstand significant pulling forces without breaking, making it suitable for building structures.

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What is an alloy?

A mixture of a metal with another element (metallic or non-metallic) to enhance specific properties.

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Study Notes

Ferrous and Non-Ferrous Metals

  • The main difference between ferrous and non-ferrous metals is the presence of iron: ferrous metals contain iron, while non-ferrous metals do not.
  • Ferrous metals are prone to rusting, whereas non-ferrous metals are resistant to corrosion.

Types of Steel

  • Stainless steel is known for its resistance against rust due to the presence of chromium, which forms a protective layer.
  • Stainless steel is ideal for architectural and structural uses due to its strength, durability, and resistance to corrosion.

Preventing Corrosion

  • Zinc is often used as a coating to prevent steel from corroding, as it acts as a sacrificial anode, corroding instead of the steel.

Properties of Copper

  • Copper is a highly ductile and malleable non-ferrous metal, making it suitable for various applications.
  • One of the main uses of copper is in electrical wiring, due to its high electrical conductivity.

Properties of Aluminium

  • Aluminium is highly valued for its low density and high strength-to-weight ratio, making it ideal for applications in aerospace.

Historical Events

  • The end of the Stone Age and the start of the Copper Age was marked by the discovery of copper around 6,000 years ago.
  • The use of bronze, an alloy of copper and tin, began to increase around 1,200 BC.

Alloys

  • An alloy is a mixture of two or more metals, often created to enhance the properties of the individual metals, such as strength, durability, or corrosion resistance.

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