How does this toy work?
  • put some water in the rocket
  • attach the pump
  • pump air into the rocket (for pressure)
  • release it and it flies VERY fast, it would easily knock a tooth out

  • The rocket flies one way, and the water flies the other way.  If there were nothing going backwards, the rocket could not go forward. 
    The ROCKET/WATER provide what is called a "force pair".  Forces always occur in pairs.  You have probably heard of Newton's third law, which many people state like this:  every action has an equal and opposite reaction.


    What does this mean to normal people?  Ever jump out of a canoe? You don't jump as far as you thought you would...WHY?  Because you go one way, but your force is also distributed EQUALLY to the canoe... SO the canoe takes some of your jumping force and it goes backwards.  These two forces are EQUAL.  If the canoe weighs the same as you, then it moves backward at the same speed you move forward.  If you jump off a bigger boat, then you can jump farther because the more massive big boat moves backward less easily. Get the point?