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Chapter 2 Science
Lesson 1 The science of Rockets
Term | Definition |
---|---|
rocket | a device that expels gas in one direction to move in the opposite direction. |
thrust | the reaction force that propels a rocket forward |
velocity | speed in a given direction |
orbital velocity | the velocity a rocket must achieve to establish an orbit around a body in space |
escape velocity | the velocity an object must reach to fly beyond a planet's or moon's gravitational pull. |