Fourth year of secondary education
Pressure (I)
E. Vallo - J.Villasuso
 Pressure
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Objectives

We would like you to understand the concepts listed below and for you to write a summary of what is presented in this topic.
Look in the Internet for some consequences of hydrostatic pressure in relation to deep sea diving. It would also be advisable to do the experiments which we describe yourself using the simple material we indicate.

Conceptual objectives:

  • To understand the concept of pressure and to manage the units it is measured in.
  • To understand the effect of pressure on fluids and to know the expression of hydrostatic pressure.
  • To know how to intrepret in scientific terms different phenomena related to pressure in every day life.
  • To know how different devices related to pressure, work.
What is pressure? How does it work?
Units
Hydrostatic pressure
Mathematical expression
The pressure increases the deeper you go in liquids
Which goes the furthest?
A little goes a long way!
Communicating vessels
Syphons
Pascal's Law
The Law
The hydraulic press
Hydraulic brakes: drum brakes
Manometers
Problems
Evaluation