His weight on the moon would be less due to gravity and i also believe during your time under little gravity your spine decompresses so you get taller <span />
When hockey players push the puck along the ice it slides causing heat which melts the ice causing the friction against the ice to be less.
For the First answer, It would be "A"
The for the next one the answer is "C"
I hope this helps. :)
Motion is the correct word that fits in.
Hope this helps.
