energy exists in several forms and is required for growth, reproduction,movement, cell or tissue damage repair, and other activities of whole organisms, or molecules.
-sun is the ultimate source of energy on Earth :)
Total energy is always conserved (First Law of Thermodynamics), but on the other hand, useful energy can and will be converted into unusable energy (Second Law of Thermodynamics). The wasted or unusable energy is quite often in the form of heat. Also, if heat energy gets dispersed, it is less useful than when it is concentrated.
Wasted energy takes the form of Thermal Energy.
Heat or sound.
Nitrogen
A great deal of energy is lost in the form of heat.
According to the law of conservation of energy, energy can't really get lost. The term "lost energy" really refers to energy changing from a high-value form to a lower value form, i.e., to a form in which it is no longer useful.
Heat or light. By the way, the energy is not 'lost', but rather turned into a different form of energy.
mostly heat energy
No not always necessarily, when energy changes form it usually is lost in the form of heat.
energy of a reaction will be lost in the form of heat.
A great deal of energy is lost in the form of heat.
According to the law of conservation of energy, energy can't really get lost. The term "lost energy" really refers to energy changing from a high-value form to a lower value form, i.e., to a form in which it is no longer useful.
Heat or light. By the way, the energy is not 'lost', but rather turned into a different form of energy.
mostly heat energy
No not always necessarily, when energy changes form it usually is lost in the form of heat.
Heat is always lost.
Heat energy
The object will have lost kinetic energy. This energy has probably gone as heat due to friction.
heat
Yes.
Condensation is exothermic. Energy is released during condensation. Energy can not be "lost" but merely change from one form to another.