Question

Which statements accurately describe conduction and convection? Check all that apply.

Only conduction needs matter to transfer thermal energy.
Only convection needs matter to transfer thermal energy.
Both conduction and convection need matter to transfer thermal energy.
Conduction involves collision of particles, while convection involves the movement of a liquid or gas.
Convection involves collision of particles, while conduction involves the movement of a liquid or gas.

Answer 1

Correct choices:
- Both conduction and convection need matter to transfer thermal energy.
- Conduction involves collision of particles, while convection involves the movement of a liquid or gas.

Notes: Conduction transfers heat via particle collisions or electron/phonon interactions (no bulk motion). Convection transfers heat by bulk movement of a fluid (liquid or gas). Radiation is the mode that can transfer thermal energy without matter.