Monday, 8 September 2014

Pressure in liquids


                                Pressure in liquids


[Density of water = 1000 kg/m3; force due to the Earth's gravity (g) = 10 N/kg]

1. When you go deeper into a swimming pool the pressure on you gets  ……………….………
2.  (a) If you could dive into a swimming pool of mercury the pressure would be  …………….
than at the same depth in a swimming pool of water.
(b) This is because the ……………………………… of mercury is  ……………………….than
that of water.
3. The pressure below 5 m of water is ……..……….. that below 10 m of water.
(Ignore the pressure of the atmosphere when answering this question).
4. Dams are thicker at the bottom than at the top because  ……………………………………. ………………………………………………………………………………………………………….
5. If the pressure hull of a submarine broke the submarine would be  …………………………
6. To stop divers getting the "bends" they should come up to the surface …………………….
7. The glass used to make the sides of large aquaria must be very  ……………….  because of the ………………………………………………………..
8. Write down the formula that you would use for finding the pressure in a liquid.
…………………………………………………………………………………………………………
9. The pressure 2 m below the water surface of a swimming pool is:
………………………………………………………………………………………………………..