Monday, 8 September 2014

PRESSURE IN LIQUIDS


                           PRESSURE IN LIQUIDS

Take g = 10 N/kg

1. What is the pressure on a deep sea diver 150 m below the surface of the sea?
(Density of sea water = 1100 kg/m3)

2. What would be the pressure 150 m down a pipe filled with oil?
(Density of oil = 800 kg/m3)

3. If the greatest pressure that a diving suit could stand was 800 000Pa (above atmospheric)  what is the maximum depth that a diver could use this diving suit in fresh water (Density of fresh water = 1000 kg/m3)


6. Why is doing a ‘belly flop’ in diving so painful?

7. Draw a diagram of a hydraulic jack and explain how it works.

8. Draw a diagram of a hydraulic brake and explain how it works.