KIDS TRIVIA

KIDS QUIZ

SPACE AND THE SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In heat transfer, heat always flows from the ____ substance to the ____ substance.
A
Hotter to colder
B
Colder to hotter
C
Hotter to hotter
D
Colder to colder
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: -Heat moves in only one direction: Under normal conditions and in nature, heat energy will ALWAYS flow from the warmer object to the cooler object. Heat energy will flow from one substance to another until the two substances have the same temperature. This is known as Thermal Equillibrium.

Detailed explanation-4: -It is a true statement. Heat is a energy which arises from motion/vibration of molecules within the substance. It always flow from higher temperature to lower temperature.

There is 1 question to complete.