Dehydration is the excessive loss of fluids in the body. Low levels of calcium and potassium may also cause muscle cramps, since both minerals contribute to healthy muscle function. Low blood supply to your legs and feet can cause cramping in those areas when you exercise, walk, or participate in physical activities.
Physical properties of materials and systems can often be categorized as being either intensive or extensive quantities, according to how the property changes when the size (or extent) of the system changes. According to IUPAC, an intensive property is one whose magnitude is independent of the size of the system.
Quick Answer. Extensive properties are those which depend on the amount of matter present, while intensive properties are those that do not change regardless of the amount of matter present. These are both classes of physical properties. The terms intensive properties and extensive properties are used when comparing, contrasting and describing chemical substances. Because intensive properties do not depend on the amount of matter present, they are very useful when identifying chemical substances.