kg•m²/s³[edit source]
I don't get the point of using this basic units for power, current, voltage and time. --Javier Carro 22:09, 26 November 2007 (PST)
- Thanks, Javier. You raise a good point. Meters, kilograms and seconds are considered the most fundamental units, and the others (volts, watts, etc) are developed on top of them. The MKS units make good sense for mechanical power, and it might be more clear if we included mechanical power and energy examples (and there are good examples). I'll think about that, or nudge Lonny to do it :-) He teaches mechanics. My physics is about 20 years rusty. --CurtB 22:33, 26 November 2007 (PST)
- It's useful to understand how the basic units relate... but Newtons and joules make more sense when talking about force and energy, so I think they deserve a mention. Perhaps basic units in an extra column of a table...? To illustrate the point being made about "kilowatts per hour" error, one set of units could be used, e.g. joules. A watt is a joule per second; and a watt per second makes no sense the way it's normally used. Joules per second per second? That sounds like accelerating energy usage. Come to think of at, that is actually what the earth is doing :) - but it's not really useful to express it this way I suspect.--Chriswaterguy · talk 02:37, 27 November 2007 (PST)