It is easier to move our arms and legs when we are inside water than in air.Why?
With the help of given figure, find which stone's weight is more?
The figure shows a small iron ball sunk in a beaker of fresh water. Now, if some table salt is added to water in the beaker, explain how an upthrust experienced by the ball will be affected.
It is difficult to sink an empty plastic bottle in water. Why ?
In the given figure X and Y are two blocks (having same volume) sinking in a liquid. Answer the following questions a reason.
If a ship is used to move once in Begnas lake and in the sea , in which weight and floats on air(halts)
A helium filled balloon rises to a certain height and then halts. Why ?
Why is weight of the body is less in water than in air?
It is easier to swim in a ocean than in a river.Justify it.
It is easier to pull bucket of water from well inside water but difficult when it is out of water, why ?
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