Across
- 1. the top of the rocket
- 5. force that pushes objects come down to the earth.
- 7. machine that creates mechanical energy and so parts motion
- 8. part of the engine
- 9. smooth,even airflow around the rocket
- 10. force that acts between the object and the fluid and slows the motion of the object
- 12. the vertical part of the tail
- 14. the point on the rocket where all mass appears to be concentrated
- 16. a force causing to move forward
- 17. air is mixed with fuel and then ignited
- 18. propel with force
- 19. slide back and down to increase the surface of the wing area.
- 21. something that adds weight in order to improve stability
- 23. the highest altitude a rocket reaches during flight
- 24. called airfoils;provide the lift for the plane
Down
- 2. the exhaust duct of the engine.
- 3. a composite of mixed origin
- 4. an assemblage of separate parts
- 6. the rate of change of position along a straight line with respect to time
- 11. the wings of a plane.
- 13. force that pushes objects upward.
- 15. body of the plane
- 16. any substance that moves forward
- 20. part of the plane that provides stability for the plane
- 22. the act of working out the former of something