Characteristics of materials

What does density measure in materials?

• The material's ability to conduct electricity

• The material's mass per unit volume

• The material's ability to resist indentation

• The material's ability to return to its original shape

What property describes a material's ability to be shaped by bending or stretching?

• Elasticity

• Toughness

• Stiffness

• Formability

Which force attempts to compress an object?

• Shear force

• Tensile force

• Impact force

• Compressive force

What does opacity in materials refer to?

• The property that stops the passage of light

• The ability to become magnetic

• The ability to withstand forces

• The ability to conduct heat

What is the property of a material to return to its original shape after distorting force is removed?

• Stiffness

• Formability

• Elasticity

• Toughness

Which property allows a material to withstand application of impact force without failure?

• Strength

• Hardness

• Toughness

• Elasticity

What describes a material's resistance to indentation or scratching?

• Resistance to creep

• Hardness

• Frictional properties

• Thermal conductivity

What is the property of a material to conduct electricity called?

• Thermal conductivity

• Magnetic properties

• Resistance to corrosion

• Electrical conductivity

What does the melting point of a material indicate?

• The temperature at which it begins to become a liquid

• The temperature at which it conducts electricity

• The temperature at which it becomes magnetic

• The temperature at which it resists indentation

What property describes how a material changes size relative to temperature?

• Coefficient of expansion

• Relative density

• Melting point

• Thermal conductivity