SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 37 degrees. Which direction should the energy transfer between Objects A and B?
A
From Object A to Object B
B
From Object B to Object A
C
Energy will not transfer
D
Energy will transfer both directions
Explanation: 

Detailed explanation-1: -Heat Transfer: The movement of heat from a warmer object to a colder one – when two substances at different temperatures are mixed together, heat flows from the warmer body to the cooler body until they reach the same temperature (Zeroth Law of Thermodynamics – Thermal Equilibrium).

Detailed explanation-2: -When two objects have different temperatures, heat is transferred. The cooler object gets warmer until the two objects have the same temperature. Heat energy always flows from the warmer object to the cooler object.

Detailed explanation-3: -Conduction occurs when two things at different temperatures touch each other and energy directly transfers from the material in the hotter object to the material in the colder object at the point of contact. A metal pot used to boil water on a stove top is an example of how heat is transferred through conduction.

There is 1 question to complete.