Conversion of Solid by Melting and Recasting

Conversion of cubes by Melting and Recasting : Three cubes are melted;whose edges are 3cm;4cm and 5cm to form a single cube. Find its edge; volume and surface area.

Conversion of Solid by shape change

Name the term used for the following : (i) Conversion of vapours to solid (ii) Conversion of solid to liquid (iii) Conversion of vapours to liquid.

(a) Conversion of solid of vapour is called sublimation . Name the term used to denote the conversion of vapour to solid. (b) Conversion of solid state to liquid is called fusion, what is meant by latent heat of fusion?

(a) conversion of solid to vapours is called sublimation. Name the term used to denote the conversion of vapours to solid. (b) Conversion of solid state to liquid state is called fusion, what is meant by latent heat of fusion ?

For the conversion of liquid into a solid

A solid sphere of radius r is melted and recast into the shape of a solid cylinder of heighty ‘r’. Then the radius of base of solid cylinder will be.............

A solid sphere of radius r is melted and recast into the shape of a solid cone of height r. Find radius of the base of the cone.

A solid sphere of radius 3 cm is melted and recast into a cylinder of radius 2cm. The height of the cylinder is :

A solid sphere of radius 3 cm is melted and recast into a cylinder of radius 2 cm. The height of the cylinder is :