1. Write an activity that proves air exerts Pressure. 2. Write any one experiment that proves high speed winds are accompanied by low pressure. (Draw the diagrams with the activities along with suitable explanation)
Answers
Answer:
Air Exerts Pressure
Don’t we all just love bubble wrap? Isn’t fun to pop those bubbles? But how is it possible? What is actually happening when you’re popping a bubblewrap? Well, it’s simple! When you pop bubble wrap, the air inside the bubble exerts pressure and hence it pops. Interesting isn’t it? Let us study more in-depth about how air exerts pressure.
Air Exerts Pressure
The envelope of air surrounding the earth is called atmosphere. Air has weight. The weight of air presses our bodies all the time. This weight of air acting on a surface causes air pressure. Air pressure can be understood with the help of certain activities.
Browse more Topics under Winds Storms And Cyclones
Air Expands on Heating
Thunderstorms and Cyclones
Activity I
Materials Required: tumbler, water, square cardboard piece
Method: Fill up the tumbler with water up to the brim. Cover it with cardboard piece and turn the glass upside down. Slowly remove your hand.
Observation: Cardboard does not fall and water stays in the glass.
Inference: air pushes the cardboard up and prevents it from falling.
Explanation:
Answer:
Air Exerts Pressure
The envelope of air surrounding the earth is called atmosphere. Air has weight. The weight of air presses our bodies all the time. This weight of air acting on a surface causes air pressure. Air pressure can be understood with the help of certain activities.
Browse more Topics under Winds Storms And Cyclones
Air Expands on Heating
Thunderstorms and Cyclones
Activity I
Materials Required: tumbler, water, square cardboard piece
Method: Fill up the tumbler with water up to the brim. Cover it with cardboard piece and turn the glass upside down. Slowly remove your hand.
Observation: Cardboard does not fall and water stays in the glass.
Inference: air pushes the cardboard up and prevents it from falling.
Activity II
Materials Required: plastic bottle with cap, hot water, cold water
Method: Pour hot water into the plastic bottle. Empty the bottle and put the cap tightly. Pour some ice-cold water on it.
Observation: The bottle will get de-shaped.
Inference: The air from the bottle expands as it becomes hot. When it is cooled, air contracts. The outside air has more pressure and it crushes the bottle.