Yes, energy exists. Fire is not energy, it is a cloud of hot particles that have energy.Flabbyflab said:Hello, I am having a dispute with my friend on whether fire exists. We have established that fire is energy, but I need to know whether energy "exists". Please, if you can answer this, I need a descriptive response before he will accept it. Thank you!
Energy is a physical quantity that describes the ability or capacity of a system to do work. It can also be defined as the property that must be transferred to an object in order to perform work on or heat the object.
Energy can be observed and measured in various forms, such as kinetic energy (energy of motion), potential energy (stored energy), thermal energy (heat), and electromagnetic energy (light). These forms of energy can be seen and their effects can be measured through experiments and observations.
No, energy itself is not a substance or material. It is a property that is present in all physical systems and can be transferred between different objects or systems, but it is not something that can be held or touched.
According to the law of conservation of energy, energy cannot be created or destroyed. It can only be transformed from one form to another. This means that the total amount of energy in a closed system remains constant over time.
The SI unit for energy is the joule (J), which is defined as the amount of energy required to exert a force of one newton over a distance of one meter. Other common units for energy include calories, kilowatt-hours, and electronvolts.