Question

Which of the following statements are correct regarding energy?

• A. It is the capacity to do work
• B. It cannot be created nor be destroyed
• C. It can be transferred from one object to other
• D. It can change it's form

Answer 1

Answer: (A), (B), (C), (D)

It can change it's form

Energy is defined as the capacity of doing work and it can be transferred from one object to another. It can neither be created nor be destroyed but can be changed to other forms. This is known as the law of conservation of energy.
Examples:
Fire for cooking - heat energy causes a chemical change.
Photosynthesis - solar energy is converted into food.