OBJECTIVES: At the end of this lesson, the student should be able to: 1. Define air flow 2. Identify at least 3 ways of generating air flow 3. Name two types of air flow 4. Define hydraulic 5. Identify four hydraulic devices 6. Define pneumatics 7. Identify four pneumatic devices. Definition: Airflow can be defined as the continuous and steady movement of air in a particular direction or at random movement. Generation of Air: Air can be generated in various ways. Some of these ways include: i. Fan ii. Mouth iii. Air pump iv. Bellow Mechanical Properties Of Air The mechanical properties of air are weight, atmospheric pressure and the relationship between pressure, temperature and speed. Weight: That air weighs something can be experimented with an empty balloon. If filled with air, the balloons original weight increases. Again, since cold air has weight more than hot air, it is found useful in hot-air-balloon, in which the heavier air, which is...
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