A Newton is: ( (one kilogram times one meter) per second) per second) I am trying to get at the basic logic of how we can apply numbers to reality. I have a good understanding of how we use a ratio to express things. A ratio seperates one quantity into the amount of another quantity. In fact that kind of makes sense of the word numerator and the word denominator. Denominator kind of sounds like the dominant unit; the fraction gives one quantity in terms of the quantity in the denominator. But I dont have a clear notion of how multiplication makes sense. One kilogram is moved one meter: A mass quantity, multiplied by a distance quantity. I suppose this just gives you a definite value that can be compared in the same types of situations involving a mass moving a distance. Hmm I think I answered my own question. Any suggestions on understanding the basics meanings of mathematics? I have thought that a good way to get a grasp of physics is to understand all of the units and how they are arithematically related to each other. I have completed up through Calc 3 and will start differential equations next semester, and there are alot of simple things I have taken for granted about mathematics and do not really understand.