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The total energy of an isolated system will not change if it has no interaction with the outside.
The reason for this is that energy is conserved.
(To be exact about it, one needs to be a little picky about what it means means to be isolated. That means no radiation of light and no gravitational interactions and no electromagnetic forces, but that is pretty much understood when one says "isolated.")
Mechanical energy does not generally include things like heat, electromagnetic energy and chemical energy, to name a few.
Assuming mechanical energy is entirely kinetic and potential energy, then energy is conserved in an isolated system only if the exchange of energy is between mechanical and potential. Expand the definition of "mechanical energy" and you can exchange between any forms of energy in your definiion.
That is the only condition that the conservation of mechanical energy is achieved.
What else can I help you with?
What happens to the total energy in an isolated system?
In an isolated system, the total energy remains constant and does not change.
How can mechanical energy change into chemical energy?
Mechanical energy can change into chemical energy through processes like photosynthesis in plants. In this process, light energy is converted into chemical energy stored in the bonds of molecules like glucose.
The function of a generator is to change?
...is to change electrical energy into mechanical energy.
Mechanical energy can change to non-mechanical energy as a result of?
Mechanical energy can change to non-mechanical forms through processes like friction or air resistance, which convert kinetic energy into heat energy. Additionally, mechanical energy can be transformed into other forms of energy such as sound or light through various interactions.
Why does the mechanical (total) energy of the skater not change over time?
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
What happens to the total energy in an isolated system?
In an isolated system, the total energy remains constant and does not change.
Can heat energy change into mechanical energy?
It will still be heat energy, but it can be converted to mechanical energy
How do you change energy to electricity?
mechanical energy !
How can mechanical energy change into chemical energy?
Mechanical energy can change into chemical energy through processes like photosynthesis in plants. In this process, light energy is converted into chemical energy stored in the bonds of molecules like glucose.
The function of a generator is to change?
...is to change electrical energy into mechanical energy.
Mechanical energy can change to non-mechanical energy as a result of?
Mechanical energy can change to non-mechanical forms through processes like friction or air resistance, which convert kinetic energy into heat energy. Additionally, mechanical energy can be transformed into other forms of energy such as sound or light through various interactions.
What type of energy do motors change electrical energy into?
Most electric motors change electrical energy into rotational mechanical energy. A few electric motors change electrical energy into linear mechanical energy.
Why does the mechanical (total) energy of the skater not change over time?
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
How does the change in mechanical energy affect the motion of an object?
The change in mechanical energy affects the motion of an object by influencing its speed and direction. When mechanical energy increases, the object can move faster or change its path. Conversely, a decrease in mechanical energy can slow down the object or alter its trajectory.
How do you change heat energy to electrical?
mechanical energy !
Can heat energy can change to mechanical energy?
Yes.
Can electrical energy change into mechanical energy?
Yes, and its one of the most efficient ways to get mechanical energy at 95%.
