Question

what is convection,conduction and reflection.​

Answer 1

Answer:

Conduction shows, how heat is transferred between objects in direct contact, but Convection reflects how heat travels through liquids and gases. ... Conduction usually occurs in solids, through molecular collision. Convection occurs in fluids by mass motion of molecules in the same direction.

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Answer 2

Thermal conduction is the transfer of internal energy by microscopic collisions of particles and movement of electrons within a body. The colliding particles, which include molecules, atoms and electrons, transfer disorganized microscopic kinetic and potential energy, jointly known as internal energy.

Convection is the transfer of heat due to the bulk movement of molecules within fluids, including molten rock. Convection includes sub-mechanisms of advection, and diffusion. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place.

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves.