Rocket Science

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Across
  1. 2. tries to keep the rocket from lifting off
  2. 3. a cylindrical object containing its own fuel to propel itself
  3. 6. substance that moves the rocket forward
  4. 9. force used to attain liftoff
  5. 11. impulse I = Duration * Thrust
  6. 13. von Braun the father of rocket technology
  7. 14. third law of motion every action has an opposite and equal reaction
Down
  1. 1. moving smooth and steadily
  2. 4. small rocket engines
  3. 5. the speed of something in a certain direction
  4. 7. uneven movement caused by drag
  5. 8. Robert H. Goddard person who built the first liquid-fueled rocket
  6. 10. of pressure the point where drag acts
  7. 12. when something leaves the surface, it is propelling off