SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The internal energy of a system is equal to ____
A
____ the total energy that its particles have in their kinetic energy stores.
B
____ the total energy that its particles have in their potential energy stores.
C
____ the total energy that its particles have in their kinetic and potential energy stores.
D
None of the above
Explanation: 

Detailed explanation-1: -The total energy E of a system is simply the sum of its internal, kinetic, an potential energies: E=me=m(u+ke+pe)=U+KE+PE.

Detailed explanation-2: -If the potential and kinetic energies of a system are neglected, internal energy is the only form of energy present. Hence, the total energy equals the internal energy, and Equation 6-12 reduces to E=U.

There is 1 question to complete.