propulsion

(noun)

Force causing movement.

Related Terms

  • potential energy
  • kinetic energy

Examples of propulsion in the following topics:

  • Rocket Propulsion, Changing Mass, and Momentum

    • In rocket propulsion, matter is forcefully ejected from a system, producing an equal and opposite reaction on what remains.
    • The propulsion of all rockets, jet engines, deflating balloons, and even squids and octopuses is explained by the same physical principle: Newton's third law of motion.
    • The practical limit for ve is about 2.5×103m/s for conventional (non-nuclear) hot-gas propulsion systems.
  • Escape Speed

    • Imagine a situation in which a spaceship that does not have a propulsion system is launched straight away from a planet.
    • (It is moot to discuss escape speed for objects with propulsion systems.)
    • If the vehicle has a propulsion system to provide it with energy once it has left the surface of the planet, it is not necessary to initially meet escape speed requirements.
  • Orbital Maneuvers

    • An orbital maneuver is the use of propulsion systems to change the orbit of a spacecraft (the rest of the flight is called "coasting").
    • In spaceflight, an orbital maneuver is the use of propulsion systems to change the orbit of a spacecraft.
  • Free-Falling Objects

    • The free fall would end once the propulsion devices turned on.
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