The water/weight comes up all the time. Filling a 10L bucket, I know that is going to weigh 10kg. I know I can lift it and my kid can’t.
The energy one, I’m not even sure is right. We don’t use calories, we use kilojoules. A joule is used to lift 1kg 1m. It’s not something I ever use. I use kilojoules for tracking food I ate today, that’s about it.