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CHAPTER 6: AIR PRESURE. Air pressure : the sum of the forces of all the particles striking the wall, divided by the area of the wall. force Air pressure = ------- area. Air pressure is measured with Barometer. Pressure gauge.
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Air pressure : the sum of the forces of all the particles striking the wall, divided by the area of the wall. force Air pressure = ------- area
Air pressure is measured with Barometer. Pressure gauge Bourdon gauge
Soalan exam trial Kelantan 2011 Air particles and density are less. Less pressure Example: Peak of the mountain Sea level = 1 atmosphere If more air, so its denser. (air pressure is greater)
Factors affecting air pressure. collisions Gas particles Air pressure Force exerted Onto the wall
Closely related to Acts in Carry out in whereby whereby Changes gas into
conclusion AIR PRESSURE GASES CAUSED BY COLLISIONS AND BOUNCING OFF OF AIR PARTICLES FROM THE WALLS OF A CONTAINER IS USED IN APPLIANCES UNDER HIGH PRESSURE: 1.CHANGE INTO LIQUIDS 2. ARE STORED IN TANKS. 3. MUST BE USED WITH GREAT CARE. TO SOLVE PROBLEM SUCH AS BLOCKAGES IN SINKS AND POURING CONDENSED MILK EASILY FROM A CAN. IS AFFECTED BY: 1. VOLUME 2. TEMPERATURE
Siphon & syringe PMR 2011
PMR 2012 PMR 2012
Penutup 1. Baca Surah Al-`Ashr 2. Tasbih Kifarah.