EASY
Earn 100

Which of the following are the example of atmospheric pressure?

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Important Questions on Force

HARD
How would you show that air exerts pressure? Explain with a diagram.
EASY
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to
MEDIUM
Why do bicycle tubes burst when over-filled?
EASY

When you drink a soft drink with the help of a straw what forces the liquid to rise up in the straw?

MEDIUM
Which is higher–the atmospheric pressure at Mumbai or the atmospheric pressure on top of Mt Everest? Give reasons.
 
MEDIUM

We are able to drink liquids using a straw. Explain why.

MEDIUM
How do we use air pressure in our everyday life?
MEDIUM
Give reason for the following :
A balloon collapses when air is removed from it.
EASY
In which direction does air exert maximum pressure?
HARD

Solve the ladder word puzzle with the help of clues given alongside.

                    A                      
                    1T       D             M
                    M                      
            2T     H O                      
                    S                      
        3W       R   P O                    
                    H                      
                    E                      
4E     A         A   R   G                  
                    I                      
          5H     R   C     E                
                    6P                      
                7T   R   A                  
                    E                      
                    S                      
        8S       T   S     E                
                    U                      
                    R                      
                    E                      

Clues

1. Heavily falling water along with rising warm air producing heavy rain, lightning, sound and strong wind. 12
2. Cyclones originating from China sea. 7
3. Tornado formed over the sea. 11
4. Place on the earth which receives more sunlight. 16
5. Tropical cyclones in the Gulf of Mexico, the Caribbean Sea and Western Pacific Ocean. 10
6. From where colder air moves down. 11
7. Storms that form very suddenly on the land. 7
8. The atmospheric layer where the ozone layer exists. 12

EASY
Air pressure forces a liquid upwards.
EASY
Explain why a rubber sucker pressed on a smooth surface gets stuck to the surface.
 
MEDIUM
Name the factors on which atmospheric pressure depends. Explain how does atmospheric pressure changes when we go to the mountains. 
EASY
With an increase in altitude, both density and pressure of air decrease.
EASY
Give reason for the following :
Two holes are made in a sealed oil tin to take out oil from it.
MEDIUM

List five uses of air pressure.  

EASY
How does the atmospheric pressure change with altitude?
EASY
We do not feel uneasy even under the enormous atmospheric pressure. Give a reason.
MEDIUM
Give reasons: 
The wind blows because of air pressure.
EASY

Match the columns

Column A Column B
1. Stratosphere A. Clear and Sunny
2. High pressure B. Convection
3. Thunderstorms C. Variable winds
4. Cyclones D. Mild cyclones
5. Depressions E. Ozone layer