Physics
Explain the principle of a hydraulic machine. Name two devices which work on this principle.
Related Questions
Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
Deduce an expression for the pressure at a depth inside a liquid.
The diagram in figure below shows a device which makes use of the principle of transmission of pressure.
(a) Name the parts labelled by the letters X and Y.
(b) Describe what happens to the valves A and B and to the quantity of water in the two cylinders when the lever arm is moved down.
(c) State one use of the above device.
Draw a simple diagram of a hydraulic jack and explain it's working.