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