ICSE ICSE Class 8 - CISCE Question Bank Solutions for Physics

Find the thrust required to exert a pressure of 50000 pascals on an area of 0.05 m² ?

Find the area of a body which experiences a pressure of 50000 Pa by a thrust of 100 N?

Calculate the pressure in pascal exerted by a force of 300 N acting normally on an area of 30 cm².

How much thrust will be required to exert a pressure of 20,000 Pa on an area of 1 cm².

The base of a container measures 15 cm × 20 cm. It is placed on a table top. If the weight of the container is 60 N, what is the pressure exerted by the container on the table top?

Calculate the pressure exerted on a surface of 0.5 m² by a thrust of 100 kgf.

A boy weighing 60 kgf stands on platform of dimensions 2.5 cm x 0.5 cm. What pressure in pascal does he exert?

The figure shows a brick of weight 2 kgf and dimensions 20 cm × 10 cm × 5 cm placed in three different positions on the ground. Find the pressure exerted by the brick in each case.

Evaporation is rapid on a wet day.

Evaporation takes place only from the surface of liquid.

All molecules of a liquid take part in the process of evaporation.

Temperature of a liquid rises during boiling or vaporization

All molecules of a liquid take part in boiling.

Boiling is a rapid phenomenon.

Boiling occurs at ....................

Evaporation takes place at ................. .

The molecules of liquid ............. heat from surroundings in evaporation.

Heat is ................... during boiling.

Cooling is produced in ....................

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