3 applications of pressure for class 8
Answers
The area of the knife is very small which creates enough pressure to cut easily.
Skis have a large area to reduce the pressure on the snow hence it does not sink.
A large ship has a large area which helps it to float. This is the reason why an iron nail. sinks but not a big ship.
Liquid pressure is used in brakes of cars.
Applications of pressure:-
1) A syringe consists of a tight-fitting piston which moves in a cylinder, with a nozzle at one end also works with the help pressure.
2)When air is sucked out of a drinking straw ,the air pressure inside it decreases and the atmospheric pressure outside forces the liquid to go inside the straw.
3)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.
4)Siphon is only a rubber cylinder utilised for exchange fluid with the help of pressure.