Across
- 2. third law of motion:equal and opposite reaction
- 4. Von Braun:Aerospace Engineer
- 8. forward
- 9. opposite: direction of a moving object
- 10. impulse:total impulse
- 13. reaction mass
- 14. Robert H. Goddard: American engineer, professor, physicist, and inventor
Down
- 1. or liquid
- 3. disorder
- 5. of pressure: flight are centered
- 6. or rocket lifts off
- 7. firework or signal
- 11. effectively a rocket uses propellant
- 12. Rocketry