Material properties

It is the consequence of fatigue

• Creep

• Micro-cracking

• Cyclic loads

• Fracture toughness

If a material is stiff

• It has low elasticity and high tensile strength

• It has low elasticity and low tensile strenght

• It has been extended to a point before its elastic limit

Extension is also called

Tension causes

• Compression

• Demonstration

• Extension

• None of them

The action of two surfaces being rubbed together is called

Hard materials are more durable than soft materials

• True

• False

¿What is identation?

• The ability to be identified by materials

• Tension in the teeth of a material

• Compression in the surface due to impacts

• All of them are correct

¿What is scratch hardness?

• The ability to be cuddled by a hard material

• Resistance to impacts

• Metal tension or elongation

• Resistance to abrasion

When temperature increases, most materials tend to

The decrease in size due to cooling is called

• Contraction

• Compression

• Elongation

• Coolification