January 2026
Intermediate
224 pages
7h 43m
English
Content preview from Nvision Foundation Physics Grade 8 2026
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CHAPTER 3: PRESSURE, WINDS, STORMS, AND CYCLONES
CHECK POINT 1
1. Pressure = 
= 1 Pa
2. Gravitational unit of pressure is kg wt/m2. It is equal to 9.8 Pascal.
3. CGS unit of pressure is Barye(Ba) which is equal to 0.1 Pa.
4. 1 atm = 1.01 × 105 Pascal
CHECK POINT 2
5. Barometer is an instrument used to measure atmospheric pressure.
6. The atmospheric pressure in space is zero while on earth the atmospheric pressure is 1.01 × 105 Pascal, to counter that astronauts wear special pressurized suits otherwise their blood vessels will rupture due to blood pressure and zero outside pressure.
7. Air pressure decreases with the increase of height above ...
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