Irgasheva nasiba dadajanovna mechanical english

Unit 13
Fluid Motion
This course addresses properties of fluids in motion. The first section covers the interaction of solids with liquids and gases. The most important of these are buoyancy, drag and lift. Buoyancy is at work even when stationary. Drag and lift, however, are both related to movement. Students will also explore the concept of thrust. The first section concludes with a discussion of types of flow. Students will explore how and laminar flow and turbulent flow interact with various forces.
The second half of the course deals with applications of fluid motion. Students will study how principles work in real-world situations. This includes the aerodynamics of aircraft and spacecraft. This portion of the class will make use of computer models. In addition the class will have access to the school's wind tunnel. The final project will examine how air affects various objects.

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1.Read the course description. Then, mark the statements as true (T) or
false (F).
1.Buoyancy and thrust are covered in the same the shape of its container takes
2.In the second section, students will build small aircraft.
3.The course's final project focuses on the behavior of liquids.


2.Match the words or phrases (1-8) with the definition:
1.drug 2. thrust 3. gas 4. lift 5. aerodynamics 6.liquid passage,
7. buoyancy 8.wind

A. a fluid that disperses to fill a container evenly.

B. a force that a fluid exerts against the weight of a stationary object

C. the study of how air moves around solids.

D. a force that opposes the motion of a solid object through a fluid

E. a dense fluid with a well-defined volume that takes the shape of its container.
F. a force that propels an object through a chamber through which air flows at a constant rate
H. a force that acts in a direction perpendicular to the direction of a flow