Question

The increase in volume of a substance when heated, is called :

• A. thermal expansion
• B. linear expansion
• C. superficial expansion
• D. cubical expansion

Answer 1

The correct option is D

cubical expansion

1. The expansion of a substance by the absorption of heat energy is called thermal expansion.
2. There are three types of thermal expansion: Linear expansion, superficial expansion, and cubical expansion.
3. Linear expansion: The expansion in length of a substance by absorbing heat energy.
4. Superficial expansion: The expansion in the area of a substance by absorbing heat energy.
5. Cubical expansion: The expansion of the volume of a substance by absorbing heat energy.
   Hence, The increase in the volume of a substance when heated is called cubical expansion