A hydraulic system uses liquid under pressure to deliver force over longer distances than pneumatic systems. It works using two pistons inside a cylinder, where one piston has a larger surface area than the other so that the pressure exerted is multiplied, allowing the smaller piston to lift objects. Hoists are examples of hydraulic systems that use high water pressure in either open or closed systems to lift things like toy cars.

1. Hoists

2. Hydraulic systems
A hydraulic
system
pressures a
liquid to deliver
force.
Advantages of hydraulic system
o liquids can’t be compressed so the
pressure is greater.
o Pressure can be delivered over
longer distances the pneumatic can.
One disadvantage of hydraulic
systems is that under colder
temperatures the liquid would
freeze.

3. How does it work?
A hoist uses two
pistons, one that is
bigger then the other, to
cause pressure inside a
cylinder to lift things for
example a toy car.
One piston has a smaller
area because the pressure
exerted to the bigger piston
multiplies to make a greater
force

4. Hoist are closed
systems that use
high water pressure.
Open or closed

5. Diagram example 1
Input piston
Car
Output
piston

6. The end