The pressure is defined as the force per unit area. It is directly proportional to the force applied on the object and inversely proportional to the area of contact.

Modern's abc+ Of Science - Physics For Class IX>Chapter 4 - Floating Bodies>Summative Assessment Some Solved CBSE Sample Questions>Q 61

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9th CBSE

IMPORTANT

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To compare the pressure exerted by a cuboid, Neetu was given four solid cuboids made of plastic, wood, aluminium and brass. The dimensions of each cuboid are $15 cm \times 10 cm \times 5 cm$ : To perform the experiment effectively she should choose.

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Important Questions on Floating Bodies

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9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 4 - Floating Bodies>Summative Assessment Some Solved CBSE Sample Questions>Q 62

A student places an iron cuboid of dimensions

1 cm \times 4 cm \times 10 cm

on the loose sand with its side of dimensions (i)

1 cm \times 4 cm

and (ii)

4 cm \times 10 cm

lie on sand. If the pressures exerted by the cuboid in two cases are

P_{1}

and

P_{2}

respectively, then

\frac{P_{1}}{P_{2}}

must be:

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9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 4 - Floating Bodies>Summative Assessment Some Solved CBSE Sample Questions>Q 63

To observe and compare the pressure exerted by three different faces of a cuboid on sand, the following material is available in a school laboratory: (A) A tray filled with fine sand (B) A tray filled with coarse sand (C) A wooden cuboid of dimensions