Question

Conduction requires:

• A. Temperature gradient
• B. Fluid motion
• C. Radiation
• D. Vacuum

Hint:

Remember: Conduction only occurs when there is a temperature difference between two regions, leading to heat flow from the hot region to the cold region.

Answer 1

The Correct Option is A

Conduction is the transfer of heat through a solid or between solids that are in direct contact. It requires a temperature gradient, meaning heat flows from a region of higher temperature to one of lower temperature.
- Temperature gradient is correct because conduction relies on the difference in temperature to transfer heat.
- Fluid motion is associated with convection, not conduction.
- Radiation is a form of heat transfer that does not require a medium, unlike conduction, which requires direct contact.
- Vacuum does not aid conduction; conduction needs a material medium through which heat can be transferred.
Thus, conduction requires a temperature gradient.