Mechanical energy is the total amount of potential and kinetic energy in a system.

PHYSICAL SCIENCES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	True
B	False
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -Assertion :Mechanical energy is the sum of macroscopic kinetic and potential energies. Reason: Mechanical energy is that part of total energy which always remain conserved. Reason : Potential energy is always negative and if it is greater than kinetic energy total mechanical energy will be negative.

Detailed explanation-2: -The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy (abbreviated TME).

Detailed explanation-3: -The total mechanical energy of a system is the sum of the total kinetic energy and total potential energy.

Detailed explanation-4: -Whenever work is done upon an object by an external force (or nonconservative force), there will be a change in the total mechanical energy of the object. If only internal forces are doing work (no work done by external forces), then there is no change in the total amount of mechanical energy.

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