Advertisements
Advertisements
Question
Describe a simple experiment to demonstrate that a liquid enclosed in a vessel exerts pressure in all directions.
Advertisements
Solution
Take a can or large plastic bottle filled with water. Place it on a horizontal surface. Make a series of holes in the wall of the vessel anywhere below the free surface of the liquid. The water spurts out through each hole. This shows that the liquid exerts pressure at each point on the wall of the bottle.
Liquid exerts pressure at all points in all directions
APPEARS IN
RELATED QUESTIONS
In what direction does the buoyant force on an object immersed in a liquid act?
Name the force which makes heavy objects appear light when immersed in a liquid.
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will
State whether thrust is a scalar or vector?
State three factors on which the pressure at a point in a liquid depends.
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:
- the volume of body,
- the upthrust on body and
- the apparent weight of body in water.
Figure shows the same block of wood floating in three different liquids A, B and C of densities ρ1, ρ2 and ρ3 respectively. Which of the liquid has the highest density? Give a reason for your answer.
