| Why is pressure cause in a liquid/ | It is caused due to the particles in the liquid moving around and bumping into the sides with speed. |
| What does this Pressure cause? | It causes a net-force at Right Angles to All surfaces. It is equally spread out. |
| What's the formula for Water Pressure. [Fluid Pressure] | Force normal to a Surface [N]
Pressure [Pa] =---------------------------------------
Area of that Surface [m²] |
| Are Liquids compressible or not? | They are not compressible. If a force is applied to one point of a fluid, they will be a net force transmitted to other parts of the liquid. |
| Are Hydraulics Force Multipliers? | Yes. They use a small input force to generate a bigger force |
| How can we use that for our example? [Force Multipliers] | We can create s small area tube with a piston. We have another piston on the other side which will be lifted from the water. How?
We put a force in to create pressure. Water has to spread it out, and will push against the second piston for a bigger force.
More Pressure = More force.
If you had to find out force it would be:
Force [N] = Pressure [Pa] x Area [m²] |
