Why do the astronaut hop on the moon?

Answer 1

The greater size an object made of matter is, the greater its gravity. Because the moon is much smaller than Earth, there is also much less gravity. Because of this, astronauts whose weight would have kept them firmly planted to Earth weighed less on the moon and were probably required to change their walking habits in order to keep from stepping too high or too far.

Answer 2

Maybe s/he felt like it!