I did.
You will not get an Eu-OPS licence if you talk of weight in the exam, I fear.
I will not take the exam, as I will not want the certification, thanks.
The concept might be a bit advanced for the 'Dubyas
I haven't flown with the ex-president, so I wouldn't know. I didn't vote for him, and generally think he was an idiot, so you may be right. Completing a lucid sentence was a challenge for him, let alone having to worry about reality. Frankly, he's probably in a study somewhere, cowering from a pair of shoes.
Insofar as the terminology might apply to the USA, of course, it's correctly weight and balance. We obtain the empty weight of the airplane by weighing it, and we add thereto the weights of fuel, cargo, passengers, and other, until we arrive at the loaded weight for the airplane in it's myriad forms and descriptions, and determine the balance thereof for suitability for flight.
Mass is something one attends on Sundays out of guilt, allegiance, or boredom.
Newtons are, of course, for regularity.