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