Final answer:
Compressive forces are proportional to the deformation they cause in materials, relevant to processes like diamond formation and pressure experienced by submerged objects in fluids.
Step-by-step explanation:
The relationship between compressive forces and the consequent deformation of materials is a fundamental concept in physics. When focused forces are applied to a surface, they can cause objects to change length, undergo sideways bending, or experience changes in volume. This relationship is generally linear for small deformations, meaning that the force applied is proportional to the deformation experienced by the material. Compressive forces are especially significant in the production of industrial diamonds, or naturally when the weight of overlying materials in the earth causes carbon to form diamonds, and in the deep ocean where the pressure from water causes compression. The normal force, which acts perpendicularly to the surface in contact with an object, is another example of a compressive force. Pressure in fluids is also discussed, exerting uniform force perpendicular to any surface.