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I. Section 1 The Science of Rockets. A. History of Rockets. A device that expels gas in one direction and moves in the opposite direction Originated in China Modern Rockets- 1900’s Major advances in WWII. B. How Do Rockets Work?. For every action there is an opposite and equal reaction
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A. History of Rockets • A device that expels gas in one direction and moves in the opposite direction • Originated in China • Modern Rockets- 1900’s • Major advances in WWII
B. How Do Rockets Work? • For every action there is an opposite and equal reaction • Thrust- the amount of force that propels a rocket forward • Velocity- the speed in a given direction • Orbital Velocity- the velocity a rocket must reach in order to orbit the Earth • Escape Velocity- velocity that must be reached to leave a planets gravitational pull • Solid Fuel, Liquid Fuel, Gas
C. Multistage Rockets • Total weight of the rocket reduces as the rocket rises • Stages are fired in succession