Demo how force and pressure are related to how we feel a mass. Elicit how the pressure will change on a force when the area the force acts upon changes. Determine that for a constant force increases in the area of contact results in a decrease in pressure. Determine that the pressure is directly related to the force and inversely related to the area. Derive the formula pressure=force/area. If force is in Newtons and area in square meters, then pressure is in Pascals.