MCQ
When work is done on a body by an external force, its
- AOnly kinetic energy increases
- BOnly potential energy increases
- ✓Both kinetic and potential energies may increase
- DSum of kinetic and potential energies remains constant
✓
Answer
Correct option: C.
Both kinetic and potential energies may increase
c
An external force can change the kinetic energy or potential energy of an object without doing work on the object$-$ that is, without transferring energy to the object. Instead, the force is responsible for transfers of energy from one type to another inside the object.
An external force can change the kinetic energy or potential energy of an object without doing work on the object$-$ that is, without transferring energy to the object. Instead, the force is responsible for transfers of energy from one type to another inside the object.
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