Across
- 3. The highest region of the atmosphere that weather ballons can go up to
- 4. The force that is equal to the weight of the displaced fluid
- 6. Substances that avoid or repel water
- 8. Fluid at rest
- 11. The study of air movement and its forces on objects
- 13. Having identical values of a property in all directions
- 16. generated at the end of wing tips
- 18. Principle of conservation of mechanical energy of fluids
- 20. Device used to sink and float submarines
- 21. Has no abrupt humps or separations between different parts
- 23. a substance that has both viscous and elastic properties
- 27. Number ratio of object speed to the speed of sound
- 28. Substance with no fixed shape
- 30. A greek engineer from the city of Saracuss Italy
- 31. Said to celebrate a discovery or an invention in ancient Greece
Down
- 1. Resistance of a fluid to deformation by shear stress
- 2. The study of fluids in motion namely liquids
- 5. Describes fluid where shear stress and shear rate are linear
- 7. A body designed to create aerodynamic lift
- 9. How heavy something is relative to its size
- 10. Amount of matter an object consists of
- 12. The force that opposes the direction of motion in a fluid
- 14. Propulsive force
- 15. force per unit area
- 17. Something that can't be created or destroyed but can be transferred
- 19. Produced when propellers generate an area of low-pressure
- 22. product of the velocity and the mass
- 24. The ship that King Hieron ordered to be created
- 25. The force perpendicular to direction of motion in a fluid
- 26. The rate of change of velocity
- 29. Something made up of definite unconnected elements or separate parts