When an object slows down because of friction, its energy is not lost but merely transferred to thermal energy. Since energy naturally disperses as much as possible, the thermal energy gets dispersed throughout the atmosphere. Even though the energy is no longer usable it is still conserved.
*see the second law of thermodynamics
There are no "laws" of conservation of energy, just the law of conservation of energy. The existence of friction doesn't change anything - the law of conservation of energy still holds.
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it changes forms and energy can not be created or destroyed
Say this "even when friction occurs and physical changes take place, the law of conservation of mass states that no matter is lost in the process". (though it may seem like matter has been lost, some of the matter goes in the atmosphere or onto the ground depending on what you are applying friction too)
The law of conservation of energy states that the total energy in the universe is a constant and will remain so for example ( x=y+z ). conservation of energy has to do with reducing the amount of energy used through reduced activity and/or increased efficiency in the performance of a particular task.
Yes. There are no known exceptions - otherwise it would not be considered a law
In many energy conversions, some energy gets lost - in some cases through friction. Of course, according to the Law of Conservation of Energy, energy can't really diseappear, but it does get converted into low-value forms, i.e., unusable energy.
No; that doesn't make much sense since it would violate the Law of Conservation of Energy.
The law of Conversation of Energy
Scientists call this law the law of conservation of matter
The law of conservation of energy states that energy cannot ... 75% helpful The Law of Conservation of Energy means....that energy cannot ... 60% helpful It states that if friction is negligible,the sum of the kinetic and ....
The law of Conservation of Energy. Actually, that law has been superceded now by a slightly different one. Recently (maybe 100 years ago) it was learned that energy can become mass and mass can become energy. So the law had to be modified to say that the total combination of mass and energy can't be created or destroyed.