Question

convert 203MPa in exponential notation

Answer 1

Pressure is defined as force per unit of area. If the same force is applied to two areas, a smaller and a larger one, the pressure would be greater for the smaller area. You will probably agree that it is less scary to be stepped on by someone wearing running shoes than by someone wearing stilettos. For example, if you try pushing a sharp knife down through a carrot or a tomato, you will cut it. The area where the force is applied is small, so the pressure is high enough to cut through the object. If, on the other hand, you use a blunt knife, you will not be able to cut through because the area is greater and the pressure is lower as a result.

The SI unit for pressure is the pascal, which is newton per square meter.