Unit 4.2 AQA DTPhysical and Mechanical Properties of Metals Quiz

What is tensile strength?

• The ability of a metal to conduct electricity

• The ability of a metal to withstand pulling forces

• The ability of a metal to resist compression

• The ability of a metal to expand when heated

Which physical property of metals is associated with their ability to withstand environmental degradation?

• Melting points

• Density

• Resistance to corrosion

• Ability to be alloyed

What physical property is related to a material's ability to conduct heat?

• Thermal conductivity

• Electrical conductivity

• Density

• Melting points

Which red-orange metal is noted for its particularly good thermal conductivity?

• Aluminum

• Steel

• Copper

• Iron

At room temperature, what form does mercury take?

• Solid

• Gas

• Liquid

• Plasma

Why are we still able to find ancient coins made of silver and gold in good condition?

• They are made from synthetic materials.

• They are coated with protective layers.

• They are stored in vacuum-sealed containers.

• Their materials have good corrosion resistance.

What modern technique is used to protect metals that corrode easily?

• Storing them under low temperatures.

• Using them only in indoor environments.

• Applying alloying or coated finishes.

• Exposing them to controlled oxidation.

What determines a metal's ability to be joined with heat?

• Color of the metal

• Melting point and conductivity

• Weight of the metal

• Size of the metal

Which of the following processes is NOT used to join metals together?

• Soldering

• Brazing

• Welding

• Forging

Which MECHANICAL PROPERTY of metal does the following define:

"How well materials withstand wear and abrasion"

• Hardness

• Toughness

• Malleability

• Elasticity

• Tensile Strength