Sheldon: Now remember, Newton realized that Aristotle was wrong and force was NOT necessary to maintain motion. So, let's plug in our 9.8 m/s² as 'A' and we get force (earth gravity) = mass x 9.8 meters per second per second. So, we can see that ma = mg, and what do we know from this?
Penny: ... Um... We know that... Newton was a really smart cookie. OH! Is that where Fig Newtons come from?
Sheldon: No. Fig Newtons are named after a small town in Massachusetts. (she starts to write) No, don't write that down!