The answer you seek is efficiency.
What is needed to operate a machine is energy.
becese it is
Simple
Friction in a machine can reduce the mechanical energy produced by increasing the amount of energy lost as heat. Friction between moving parts causes resistance, which converts some of the mechanical energy into thermal energy. Minimizing friction through lubrication and proper maintenance can help increase the efficiency of a machine and maximize the amount of mechanical energy it produces.
Simple
What is needed to operate a machine is energy.
By reducing the amount of energy needed to preform an action
Chloroplast is compared to a power house. Its compared to that because it provide the energy needed to function.
becese it is
The amount of energy needed to move an electron from one energy level to another is called a quantum.
Simple
Friction in a machine can reduce the mechanical energy produced by increasing the amount of energy lost as heat. Friction between moving parts causes resistance, which converts some of the mechanical energy into thermal energy. Minimizing friction through lubrication and proper maintenance can help increase the efficiency of a machine and maximize the amount of mechanical energy it produces.
Because some of the energy (work) is converted to heat as the parts of the machine rub against each other.
Activation energy
kiran ben
Activation energy is the amount of energy needed to start a reaction.
The amount of water actually contained in air compared to the amount it could contain is known as relative humidity.