Which two forms of energy together make up the total mechanical energy of an object?

Correct option is A

The correct answer is (A) Potential and kinetic energy

Explanation:
• In classical physics, the total mechanical energy of a macroscopic object is the sum of its Kinetic Energy (energy of motion) and its Potential Energy (stored energy due to position or state).
• Formula: Mechanical Energy (ME) = Kinetic Energy (KE) + Potential Energy (PE).

Information Booster:
• Conservation Law: The Law of Conservation of Mechanical Energy states that in an isolated system subject only to conservative forces (like gravity or spring forces), the total mechanical energy remains constant. If an object falls, PE decreases while KE increases by the exact same amount.

Additional Knowledge:
• Options B, C, & D: Electrical, chemical, heat (thermal), sound, and light energy are distinct non-mechanical forms of energy. While they can be converted into mechanical energy (and vice versa) doing work, they do not constitute the definition of mechanical energy itself.