Sad, right? Problems in Chapter 1! I can usually calculate the correct values, but understanding what the units attached means, I just don't understand the concept...I can't visualize it. For example, For example, in scientific notation the universal gravitation constant G is this according to my textbook: G = 6.67 x 10-11 N*m2/kg2 That just looks like a mess to me. Newton-meters squared over kilograms squared? I am not sure what this means, and what I can "compare" it to or what I can use to visualize something (weighing this much? Is this a weight?) It was hard to explain my problem here so I am hoping this was coherent.