APPLICATION OF AIR PRESSURE

Tick the correct application of air pressure in our daily life

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Tick the correct application of air pressure in our daily life

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Identify the correct pressure at A and B

• A - High Pressure ; B - Low Pressure

• A - Low Pressure ; B - High Pressure

Air pressure inside the straw is reduced because ..

• air is sucked out from the straw and becomes semi vacuum

• volume of air inside the straw becomes larger

• temperature of air inside the straw becomes lower

Identify the correct pressure at A and B

• A - High Pressure ; B - Low Pressure

• A - Low Pressure ; B - High Pressure

Air pressure inside the syringe becomes lower when the plunger is pulled up because ..

• air is sucked out from the syringe and becomes semi vacuum

• volume of air inside the straw becomes larger

• volume of air inside the straw becomes smaller

What cause partial or semi vacuum in the rubber sucker when it is pushed into the surface of the wall?

• half of the air is forced out from the rubber sucker

• all the air is forced out from the rubber sucker

• volume of air inside the rubber sucker becomes smaller

________is the instrument used to measure air pressure.

• barometer
• thermometer
• mercury
• watch

High pressure will usually bring what kind of weather?

• clear and dry
• cloudy and wet

What is the difference between particles in a gas and a solid?

• gas particles are closer together
• solid particles move faster than gas particles
• solid particles expand on heating
• gas particles have more kinetic energy than solid particles