Question

Blowing a paper up! Cut a piece of paper 20 cm long and 3 cm wide. Hold the paper piece close to your lower lip and blow air over it. What happens to the paper?experiment what is the inference




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Answer 1

Answer:

Objective

 This topic gives an overview of; 

Air pressureAir Exerts PressureWindsHigh Speed WindsAnemometerAir Pressure

You already know that when air moves, it is called wind. Air moves from the region where the air pressure is high to the region where the pressure is low. The greater the difference in pressure, the faster the air moves. But how is  the pressure differences created in nature? Is the difference in temperature involved? The following activities will help you to understand this.

The pressure exerted by air on all bodies at all times in all directions is called air pressure. When air moves at high speeds, it creates a low pressure area. The air inside a balloon exerts pressure in all directions, and makes it blow up. Air opposes the motion of a moving object. This is called air resistance. That is why you have to exert yourself and pedal hard when you ride a bicycle.