The point, at which the total area of a plane figure is assumed to be concentrated.

• Centroid
• Central
• Center
• Centride

Quantity that determines the torque needed for a desired angular acceleration about a rotational axis, akin to how mass determines the force needed for a desired acceleration.

• Moment of Inertia
• Moment
• Moment Arm
• Inertia

Ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed.

• Elasticity
• Toughness
• Ductility
• Malleability

Physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking.

• Ductility
• Elasticity
• Toughness
• Malleability

Physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking.

• Malleability
• Elasticity
• Ductility
• Toughness

Ability of a material to absorb energy and plastically deform without fracturing.

• Toughness
• Elasticity
• Ductility
• Malleability

Measures the deformation in the material in a direction perpendicular to the direction of the applied force.

• Poisson's Ratio 
• Poison's Ratio 
• Poissan's Ratio 
• Pissoin's Ratio 

Change of the shape of the body as a reaction to applied stress. This deformation is only temporary and once the stress is released, the undeformed shape of the body is restored.

• Elastic Deformation
• Stress Relaxation
• Creep
• Fatigue
• Permanent Stress

The tendency of a solid material to move slowly or deform permanently under the influence of persistent mechanical stresses.

• Creep
• Elastic Deformation
• Stress Relaxation
• Fatigue
• Permanent Stress

The initiation and propagation of cracks in a material due to cyclic loading.

• Fatigue
• Elastic Deformation
• Creep
• Stress Relaxation
• Permanent Stress