Question

Choose one more correct alternatives for work to be performed, energy must be

• A. Destroyed
• B. Must be transferred from one form to another
• C. Concentrated
• D. None of the above

Answer 1

The correct option is B

Must be transferred from one form to another

The explanation for the correct option:

1. We know that energy can neither is destroyed, nor it can be created, it can only be changed from one form to another.
2. When any work is done there is a transfer of energy.
3. When there is the conversion of energy from one form to another, we consider work to be done.
4. When the positive work is done, there is always an increase in energy.

The explanation for the incorrect options:

1. In the case of option A, according to the law of conservation of energy, we cannot destroy or create energy.
2. In the case of option C, energy must be transferred to make the work done. The concentration of energy will lead to no work done.
3. In the case of option D, the correct answer is the transfer of energy is required for work to be done.

Hence, option (B) is correct.