Question

describe an activity to show that.
1, the pressure exerted by a liquid at the bottom of the container, depends on the height of its column.
2, liquids exerted pressure on the walls of the container.
3, liquids exerted equal pressure at the same depth
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Answer 1

Answer:

take 3 empty bottles

• in first bottle make 3 holes first below neck second at middle and third at last

1. pour water in it
2. observe that water from highest hole will fall near base.from second hole water will fall a little bit far from base.from last hole water will fall farthest from base indicating highest pressure

• crush second bottle

1. pour water in it with high pressure
2. observe water exert pressure on walls of bottle and bottle will regain its original shape

• in third bottle make holes on 4sides st equal height

1. pour water in it
2. observe due to equal pressure water will fall at equal distance from base

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Answer 2

Answer:

Selina solutions

Grade 8

Biology

Mathematics

Physics

Chapters in CONCISE Physics - Middle School - 8

Exercises in Force and Pressure

Question 27

Q27) Describe an experiment to show that a liquid exerts pressure at the bottom of the container in which it is kept.

Solution

Transcript

Solution:

To show: A liquid exerts pressure at the bottom of the container.

Procedure - Take a balloon and tie it at the lower end of a glass tube and hold vertically as in figure (a). Pour some water in the tube, balloon bulges out as in fig (b) because the water column exerts pressure at its bottom.

Observation - Force on the balloon is equal to the weight of the water column which is called Thrust. Also, pressure exerted by the water P = Thrust/Area of bottom of the tube.

This shows that a liquid exerts pressure at the bottom of the container in which it is kept.

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