The increase in the size of a body when it is heated to some temperature is called _______

option (1)

CONCEPT:

• Thermal Expansion: Whenever the solids, liquids, and gases are heated at some temperature, they start changing their shape and that process is known as Thermal Expansion.
  • Thermal Expansion made up of two words Thermal - Heat and Expansion - Change in the shape of the body.

EXPLANATION:

• All solids, liquids, and gases consist of atoms and molecules.
• On giving any heat to these atoms and molecules start changing the shape and size due to high kinetic energy between the particle.
• This results in the thermal expansion of the solid.

Additional Information

• Apparent Expansion: When a liquid is heated, its container also expanded and this observed expansion is known as Apparent Expansion.
• Real Expansion: It is the combination of Apparent expansion of the liquids and volume expansion of the container.
• The real expansion of the liquid = Apparent expansion of the liquid + Volume expansion of the container.