CHAPTER 6: AIR PRESURE
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Transcript of CHAPTER 6: AIR PRESURE
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CHAPTER 6: AIR PRESURE
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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.
forceAir pressure = ------- area
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Air pressure is measured with Barometer.
Pressure gauge
Bourdon gauge
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Less pressure
Sea level = 1 atmosphere
If more air, so its denser. (air pressure is greater)
Air particles and densityare less.
Example: Peak of the mountain
Soalan exam trial Kelantan 2011
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Factors affecting air pressure.
Gas particles Air pressure collisions
Force exertedOnto the wall
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The effect of volume on air pressure.
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Factors affecting air pressure
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Factors affecting air pressure Air pressure Collision
Force exerted onto the wall.
Number of Air particles
Number of Air particles
Temperature on air pressure
Temperature on air pressure
Volume on air pressure
Volume on air pressure
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Acts in
whereby whereby
Carry out in
Changes gas into
Closely related to
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Check ?
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AIR PRESSURE
CAUSED BY COLLISIONS ANDBOUNCING OFF
OF AIR PARTICLESFROM THE WALLSOF A CONTAINER
IS AFFECTED BY:1. VOLUME
2. TEMPERATURE
IS USED IN APPLIANCES
TO SOLVE PROBLEMSUCH AS BLOCKAGES
IN SINKS AND POURINGCONDENSED MILK
EASILY FROM A CAN.
GASES
UNDER HIGHPRESSURE:
1.CHANGE INTOLIQUIDS
2. ARE STOREDIN TANKS.
3. MUST BE USEDWITH GREAT
CARE.
conclusion
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Siphon & syringe
PMR 2011
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Insecticide spray & Drinking straw
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Filter pump & Sucker hook
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SUCTION PUMP
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PMR 2010
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PMR 2012
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PMR 2012
PMR 2012
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PMR 2012
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Penutup
2. Tasbih Kifarah.
1. Baca Surah Al-`Ashr