High School What Are the Dimensions of kWh?

[nineteen]

What are the dimensions of kilo Watt hours? Is is M L²T^-2?? If yes, why is that? If no, please teach me about what the right dimensions are and please be kind enough to provide a good explanation. Thank you in advance.

P.S. I am wondering why it doesn't have the dimensions ML²T^-3...

 

[russ_watters]

Well, a watt is a Newton-meter per second, so that's F D / T. And then hours is time, so it's F D T / T

(with conversion factors)

 

[nineteen]

Well, a watt is a Newton-meter per second, so that's F D / T. And then hours is time, so it's F D T / T

(with conversion factors)

Awesome. Thank you very much. I also figured something like this, as kWh is a unit of energy, it will ultimately equal the dimensions of energy, so the dimensions will be ML²T^-2

 

[russ_watters]

Awesome. Thank you very much. I also figured something like this, as kWh is a unit of energy, it will ultimately equal the dimensions of energy, so the dimensions will be ML²T^-2

Yes, it's just that the point of a kwh is that it has mixed time units, so I'm not sure if in this context it is useful to simplify or convert to base units (via f=ma). But sure, if that's what you are looking for...