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physics 03 pressure
Pg.No.
1
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Page 1
Q.1. Name the force acting normally on unit area of the surface?
Q.2. What is formula for pressure?
Q.3. The pressure that is exerted by a mercury column of 76cm length at 0 degree at 45 degree latitude at the sea level is known as?
Q.4. Which instrument is used to measure atmospheric pressure?
Q.5. One atmospheric pressure is equal to how many torr?
Q.6. Which type of weather is indicated by sudden fall in barometric reading?
Q.7. Which type of weather is indicated by slow fall in barometric reading?
Q.8. Which type of weather is indicated by slow rise in barometric reading?
Q.9. How atmospheric pressure is related with altitude?
Q.10. Why it is difficult to cook on the mountain?
Q.11. Why fountain pen of a passenger leaks in aeroplane at height?
Q.12. Why bleeding occurs from nose at height?
Q.13. Why it is difficult to breath on higher altitude?
Q.14. When water starts to boil below 100 degree celcius?
Q.15. What is the pressure at all points at same horizontal level in a static liquid?
Q.16. What is the pressure {p} exerted by the liquid column at the surface?
Q.17. Name the law which states that "If gravitational attraction is negligible, in equilibrium condition, pressure is same at all points in a liquid?
Q.18. Name the law which states that "If an external pressure is applied to an enclosed fluid,it is transmitted undiminished to every direction?
Q.19. Hydrolic lift, hydrolic press and hydrolic brake are all based on?
Q.20. What happens on increase in pressure on boiling point of all substances?
Q.21. What happens on increase in pressure on melting point of substances which expands on fusion?
Q.22. What happens on increase in pressure on melting point of substances which contracts on fusion?
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