## dimensional analysis

The method of dimensional analysis is very powerful in solving physics problems. Dimensions can be treated as algebraic quantities. By making estimates and performing order-of-magnitude calculations, you should be able to approximate the answer to a problem when there is not enough information available to specify an exact solution completely. In many situations, you may have to check a specific equation to see if it matches your expectations. Dimensional analysis can be used because dimensions can be treated as algebraic quantities. Example: x = 1/2at^2 dimensional analysis: x=>L 1/2 is a constant without a unit a => L/T^2 t => T The dimensional form of the equation is: L = L/T^2 T^2 = L