* Conservation of Mass: This states that mass cannot be created or destroyed, only transformed. Rockets don't violate this principle. They don't magically create mass.
* Conservation of Momentum: This states that the total momentum of a system remains constant in the absence of external forces. Here's how it applies to rockets:
* Rockets expel hot gas: This gas has momentum in one direction.
* Rocket gains momentum: To conserve momentum, the rocket must gain momentum in the opposite direction.
* Action-Reaction: The expelled gas pushing backward (action) causes the rocket to push forward (reaction).
In summary: Rockets work by throwing mass (fuel) out the back at high speed, which causes the rocket to accelerate in the opposite direction. This process relies on the conservation of momentum, not mass.
