(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

A body of mass ‘m’ is floating in a liquid of density ‘p’

what is the loss of weight of body?

A solid body weighs 2.10 N. in air. Its relative density is 8.4. How much will the body weigh if placed
(1) in water,
(2) in liquid of relative density 1.2?

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When a body is floating in a liquid:

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With the increase in the density of the fluid, the upthrust experienced by a body immersed in it:

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The SI unit of density is:

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The ratio between the mass of a substance and the mass of an equal volume of water at 4°C is called:

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A body has density 9.6 gcm ^-3. Its density in SI system is:

Suggest the best particles in the use of energy at home that save energy.

A bullet of mass 30 g, and moving with a velocity x hits a wooden target with a force of 187.5 N. If the bullet penetrates 80 cm, find the value of x

How is acceleration due to gravity-related to

1. mass of a planet
2. distance of body from the center of the earth?

State two important characteristics of mass.

What do you understand by the term weight?

State two important characteristics of weight

State the unit of weight in CGS system.

State the unit of weight in SI system.

Name the device used for measuring weight

Does a body weigh the same at all places of the Earth? Give a reason for your answer.

Why is gold not weighed by a spring balance?