MEDIUM
8th CBSE
IMPORTANT
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What is meant by atmospheric pressure? What is the cause of atmospheric pressure.

Important Questions on Force and Pressure

MEDIUM
8th CBSE
IMPORTANT
Why are our bodies not crushed by the large pressure exerted by the atmosphere?
MEDIUM
8th CBSE
IMPORTANT
Explain why atmospheric pressure decreases as we go higher up above the earth’s surface.
MEDIUM
8th CBSE
IMPORTANT
 How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth. 
MEDIUM
8th CBSE
IMPORTANT
Explain why the walls of a dam are thicker near the bottom than at the top.
EASY
8th CBSE
IMPORTANT
Which of the following is not an example of muscular force?
EASY
8th CBSE
IMPORTANT
Which of the following is not an example of the force of gravity?
EASY
8th CBSE
IMPORTANT
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 
EASY
8th CBSE
IMPORTANT
A rectangular wooden block has length, breadth and height of 50 cm, 25 cm and 10 cm, respectively. This wooden block is kept on ground in three different ways, turn by turn. Which of the following is the correct statement about the pressure exerted by this block on the ground?