# 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.

## Presentation on theme: "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."— Presentation transcript:

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 Bourdon gauge

Less pressure Sea level = 1 atmosphere If more air, so its denser. (air pressure is greater) Air particles and density are less. Example: Peak of the mountain Soalan exam trial Kelantan 2011

Factors affecting air pressure. Gas particles Air pressure collisions Force exerted Onto the wall

The effect of volume on air pressure.

Factors affecting air pressure

Air pressure Collision Force exerted onto the wall. Number of Air particles Temperature on air pressure Volume on air pressure

Air pressure All directionInfluenced by volume Pressure increase When compressed temperature Pressure increase When temperature increase Applied in Syringe Siphon Spray Drinking straw Storage of gases High pressure liquid Acts in whereby Carry out in Changes gas into Closely related to

Check ?

AIR PRESSURE CAUSED BY COLLISIONS AND BOUNCING OFF OF AIR PARTICLES FROM THE WALLS OF A CONTAINER IS AFFECTED BY: 1. VOLUME 2. TEMPERATURE IS USED IN APPLIANCES TO SOLVE PROBLEM SUCH AS BLOCKAGES IN SINKS AND POURING CONDENSED MILK EASILY FROM A CAN. GASES UNDER HIGH PRESSURE: 1.CHANGE INTO LIQUIDS 2. ARE STORED IN TANKS. 3. MUST BE USED WITH GREAT CARE. conclusion

Siphon & syringe PMR 2011

Insecticide spray & Drinking straw

Filter pump & Sucker hook

SUCTION PUMP

PMR 2010

PMR 2012

Penutup 2. Tasbih Kifarah. 1. Baca Surah Al-`Ashr

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