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Applications of Pressure in Daily Life
Some of the applications of pressure are given below.
- The area of the edge of a knife’s blade is extremely small. This creates a pressure high enough for the blade to cut through a material.
- Syringes are used to take blood for blood tests. The pressure of the liquid (blood) forces the liquid to move into the syringe when its plunger is withdrawn.
- When air is sucked out of a drinking straw, the air pressure inside if decreases and the atmospheric pressure outside forces the liquid to go inside the straw.
- Skis have a large area to reduce the pressure on the snow. This ensures that the skis do not sink into the snow too far.
- The pressure under the studs on the soles of football shoes is high enough for them to sink into the ground, which gives extra grip.
- A vacuum cleaner has a fan inside that creates a low pressure inside the device. Consequently, air and dirt particles are sucked into the device.
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