Actual Physics Lesson
Lang: Okay, guys so here's a question: what's the difference between mass and weight?
Lang: Well, okay, what is weight?
Girl 1: Like...how much you weigh?
Girl 2: How you react with gravity?
Lang: Gravity! Right. So weight has to do with gravity. So, if you're on the moon, your weight is different, because the gravity on the moon is different, but is your mass different?
Girl 1: No?
Lang: No! Right! Why?
Lang: Ooooohkay. Because mass is all about how much stuff you are made up of, right? Your matter. Like how many atoms are inside of you...
Girl 2: Adams?
Girl 1: Ewwww...
Lang: No ahh-TOMS.
Girl 1: Oh sure. Atoms.
Lang: Yeah, so just remember that weight can change, but mass can't. You know ladies, even at higher altitudes gravity affects you differently, so you can weigh less.
Girl 2: Really?
Lang: You might weigh slightly less on the top of a mountain. (pause) You guys, you would be soooooo skinny on the top of a mountain.