ICSE ICSE Class 7 - CISCE Question Bank Solutions

Convert 5°F to the Celsius scale.

Convert 40°C to the (a) Fahrenheit scale (b) Kelvin Scale.

Convert – 40°F to the Celsius scale.

Write true or false for a given statement

Equal volumes of two different substances have equal masses.

Fill in the blank

Volume of a cube = _________

Define the term volume of an object.

How will you determine the volume of a cuboid ? Write the formula you will use.

Name two devices which are used to measure the volume of an object. Draw their neat diagrams.

How can you determine the volume of an irregular solid (say a piece of brass)? Describe in steps with neat diagrams.

‘The density of brass is 8.4 g cm’3’. What do you mean by the statement ?

The mass of an iron ball is 312 g. The density of iron is 7.8 g cm^-3. Find the volume of the ball.

A cork has a volume 25 cm³. The density of cork is 0.25 g cm^-3. Find the mass of cork.

The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 ml mark to 30 ml mark. 
Find the volume of the lead piece.

The mass of a lead piece is 115 g. When it is immersed into a measuring cylinder, the water level rises from 20 ml mark to 30 ml mark ,
Find the density of the lead in kg m^-3.

Write true or false of the following statement.

The image formed by a plane mirror is upright.

Write true or false of the following statement.

The objects are seen around us due to irregular reflection of light.

Fill in the blank

Angle of incidence = ___________

Fill in the blank

The incident ray, the reflected ray and the normal lie in one _______

Select the correct alternative

The angle of incidence on a plane mirror is 30°.The angle of reflection will be:

Select the correct alternative

The angle of incidence on a plane mirror is 30°. The angle between the incident ray and the reflected ray is