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   ocr: How does a rocket work? Rockets are used to send satellites and astronauts into space. They work because they make use of: an important scientitic principle called the law of action and reaction. ACTION FORCE PUSHES HOT GASES BACKWARD - Ly à - : d - - - - - - - - : - - rane AAN - REACIION FORCE PUSHES ROCKET FORWARDI A rocket being launched into space An action force blasts hot gases from the rocket's combustion chamber. The gas responds to the action force with an equal and opposite reaction force, which propels the rocket forward. The law of action and reaction is known as Newton's third law ...