Subject

Physics

Class

ICSE Class 10

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsShort Answer Type

1.

A brass ball is hanging from a stiff cotton thread. Draw a neat labelled diagram showing the forces acting on the brass ball and cotton thread.

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2.

The distance between two bodies is doubled. How is the magnitude of the gravitational force between them affected?

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3.

Why is a jack screw provided with a long arm?


A jack, screw jack or jackscrew is a mechanical device used as a lifting device to lift heavy loads or to apply great force. A jack screw is provided with a long arm in order to have the effort less than the load.

Moment of force (torque, which is responsible for turning effect of the body)
Rotation is given by the moment

Torque = Force x perpendicular length

 Therefore, the long arm of the jack screw, the more force it can apply.

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4.

If the power of a motor is 100 kW, at what speed can it raise a load of 50,000 N?

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5.

Which class of lever will always have MA > 1 and why? 

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6.

Define heat capacity and state its SI unit.

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7.

Why is the base of a cooking pan generally made thick?

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8.

A solid of mass 50 g at 150°C is placed in 100 g of water at 11°C, when the final temperature recorded is 20°C. Find the specific heat capacity of the solid. (specific heat capacity of water = 4.2 J/g°C)

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9.

How is the refractive index of a material related to: 
(i) real and apparent depth?
(ii) velocity of light in vacuum or air and the velocity of light in a given medium?

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10.

State the conditions required for total internal reflection of light to take place.

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