Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Work Power Energy
Which of the following energy changes involves frictional force?
1
Kinetic energy to heat energy
2
Potential energy to sound energy
3
Chemical energy to heat energy
4
More than one of the above
5
None of the above