Answer:
your question is not clearly stated, let me assume your question to be ;
Explain the significance of the law of conservation of energy. Check all that apply below.
1. Systems with high potential energy tend to change in the direction of lower potential energy, obtaining energy from another objects. Systems with high potential energy tend to change in the direction of lower potential energy, releasing energy into the surroundings.
2. In the exchanges, the total energy is always conserved; energy is neither created nor destroyed. In the exchanges, the total energy is always changed; energy is created and destroyed.
3. In chemical and physical changes, matter never exchanges energy with its surroundings. In chemical and physical changes, matter often exchanges energy with its surroundings.
Explanation:
1. System with high potential energy tends to change in a direction to system with low potential energy. This system with high potential energy moving towards the direction of lower potential energy will give out their potential energy to the surrounding in form of heat, as they also receive kinetic energy from the surrounding. This is a law of conservation of energy. Energy from the system was transformed from one form to another.
2. Total energy in an exchange is always conserved or transformed.
It is conserved when energy is not lost( an enclosed system). It is changed or termed destroyed when energy is lost to the surrounding in form of heat ( an open system). Energy can neither be created not destroyed but can be transformed from one form to another. This means that the energy that we think was created are the potential energy in the system, while the energy we think was destroyed, are those energy given to the surrounding in form of heat.
3. In a chemical or physical change where matter never exchange energy with it surrounding are called closed system. The exchange of energy in this type of system is only wetin the system.
In a chemical or physical change where matter exchanges energy with it's surrounding are called open system. It is either an Exothermic reaction(the system gives out energy to the surrounding) or Endothermic reaction( the system takes energy from the surrounding).
