ROCKET SCIENCE

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Across
  1. 4. to push forcibly
  2. 7. third law of motion unbalenced force
  3. 9. a self propelled device
  4. 10. impulse the product of thrust times duration over the motor burn time
  5. 12. aggresion or violent
  6. 13. to pull something
Down
  1. 1. compossed of
  2. 2. speed of something in a given direction
  3. 3. a substance that propells soemthing
  4. 5. generaly also a rocket engine
  5. 6. of pressure whe nthe total sum of preesure field acts on a body causing a force act throught that point
  6. 8. von Braun german/american aerospace engineer
  7. 11. when the amount of thrust is greater than the weight of the rocket
  8. 13. Robert H. Goddard created and built the world's first liquid-fuled rocket