Across
- 2. a projectile that carries its own fuel
- 4. Robert H. Goddard made liquid propelled rocket
- 5. von Braun designed rockets
- 7. F=ma
- 8. states that for every action there is an equal and opposite reaction
- 13. moving unsteadily
- 14. impulse thrust times duration over the motor burn time
- 16. the speed of something in a given direction
Down
- 1. spews out of spacecraft
- 3. small rocket engines on planes or rockets
- 6. states that an object will stay in rest or motion unless acted upon by another force
- 9. taking place along constant streamlines
- 10. pushing something suddenly in a given direction
- 11. of pressure where the pressure acts on a body
- 12. pull something along forcefully
- 15. vertical takeoff of rockets