Write true or false for the following statement:
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.

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Solution

The given statement is False.
Explanation:
According to the law of conservation of energy, energy can neither be created nor be destroyed, it can just transform from one form to another.
Eg: In an electric bulb, electrical energy is converted into light energy but during this conversion, some amount of energy is wasted, which appears as thermal energy due to which the bulb gets heated. But total energy remains conserved.

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Tidal energy is one of the forms in which solar energy manifests itself in oceans.

State if each of the following statements is true or false. Give reasons for your answer.

(a) In an elastic collision of two bodies, the momentum and energy of each body is conserved.

(b) Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

(d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the system.

(b) Total energy of a system is always conserved, no matter what internal and external forces on the body are present.

(d) In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy of the system.

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