GENERAL KNOWLEDGE

Detailed explanation-1: -The heat is transferred from A to B. The mode of the heat transfer in the copper rod is conduction because Rod abby is a solid material. So in solids, the heat transfer are taking place by the help of conduction method. In conduction, the particles are vibrating when heat is transferred.

Detailed explanation-2: -Hot objects glow red and very hot objects glow white hot, because they emit light as well as infrared. The hotter the object, the more electromagnetic radiation it emits and the higher the maximum frequencies. Warm objects, like radiators and human bodies, emit infrared.

Detailed explanation-3: -Conduction is the transfer of thermal energy through a substance by the vibration of the atoms within the substance. Metals are good conductors because they have free electrons that can move easily through the metal, making the transfer of energy happen faster.

Detailed explanation-4: -Which description about successive stages of the motion of the object is correct? D) decreasing acceleration, then zero acceleration. Explanation: As the object is released from rest and falls to Earth its gravitational potential energy is converted to kinetic energy.