reaction propulsion
Definition
Noun: - A method of propulsion: A type of propulsion where a vehicle moves forward by expelling matter, typically a high-velocity stream of gas, backward. The vehicle gains momentum in the opposite direction as a reaction to this ejection, in accordance with Newton's third law of motion.
Usage
- This term is used in physics and engineering to describe the fundamental principle behind the movement of certain vehicles.
- It is most commonly applied in the context of aerospace and aeronautics.
Examples
Advanced Usage
- Technical Context: In advanced engineering, the efficiency of a reaction propulsion system is measured by its specific impulse.
- Theoretical Context: The principle of reaction propulsion is a direct application of the conservation of momentum.
Variants and Related Words
- Jet propulsion: A specific, common form of reaction propulsion where a vehicle is propelled by a jet of fluid, especially gases.
- Rocket propulsion: A specific form of reaction propulsion that carries both its fuel and oxidizer and does not require atmospheric oxygen.
Synonyms
- Jet propulsion (a specific subtype)
- Rocket propulsion (a specific subtype)
Related Phrases
- Reaction engine: The engine that produces thrust via reaction propulsion.
- Thrust: The force generated by a reaction propulsion system.
Noun
-
propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum
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