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Explain what a close system is and how energy is conserved within it?
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What does it mean to say energy is conserved within a system?
When an object is accelerated along a distance that requires energy. If the object is then slowed to a stop by a breaking system that gets back that energy then the energy is said to be conserved
Within which type of system is neither the total mass nor the total energy conserved?
That would be impossible as mass and energy are related.
How can conservation energy be used?
Conservation energy is energy that is conserved. The energy remains conserved within the unit whether it has been turned off or closed. When the device is turned back on the energy that was contained is released and therefor uses less energy.
What does thermal energy refer to?
The kinetic energy within a system
What is the thermal energy of system?
The total kinetic energy within a system
What does it mean to say energy is conserved within a system?
When an object is accelerated along a distance that requires energy. If the object is then slowed to a stop by a breaking system that gets back that energy then the energy is said to be conserved
Within which type of system is neither the total mass nor the total energy conserved?
That would be impossible as mass and energy are related.
How can conservation energy be used?
Conservation energy is energy that is conserved. The energy remains conserved within the unit whether it has been turned off or closed. When the device is turned back on the energy that was contained is released and therefor uses less energy.
How is the energy of rolling object differ from the energy of the same object at rest?
When the object is rolling it has kinetic energy or KE and when the object is at rest it has potential energy or U. In this case both are mechanical energies and mechanical energy is conserved within a system meaning it is only transferred not gained or lost.
How is energy conserved within a closed system?
The energy is conserved by the " law of conservation of energy" . It states that energy can be neither created nor be destroyed. Then a question may arise that if there is no change in the amount of energy, then why do people often say that energy should be conserved ...... energy is wasting....... we must prevent it? Energy is a finite resource. The materials we derive energy from (oil, coal, electricty, ect.) can also harm the environment. By conserving energy you help to save parts of the environment. There are many ways to conserve energy. The most obvious is to not waste it. This can easily be done by shurring off lights when you leave a room, or turning off the computer or TV when it is not being directly used. Some other ways would be to recyle (it takes more energy to produce new cans, for example, than to re-use recycled ones) or re-use bottles or bags so that energy doesn't need to go into making new ones and the others aren't wasted.
When the momentum within a system is the same before and after an event you say that what?
You say that momentum is conserved. This is always the case, if the system has no interaction with anything outside the system.
What does thermal energy refer to?
The kinetic energy within a system
What is the thermal energy of system?
The total kinetic energy within a system
What is Thermal energy of a system?
The total kinetic energy within a system
What is the law of conservation of mass which states that cannot be created or destroyed applies?
The law of conservation of energy, first formulated by Julius Robert Mayer in 1842 , is a law of physics. It states that the total amount of energy in an isolated system remains constant over time. The total energy is said to be conserved over time. For an isolated system, this law means that energy can change its location within the system, and that it can change form within the system, for instance chemical energy can become kinetic energy, but that energy can be neither created nor destroyed.For example, water falling over a waterfall is slightly warmer at the bottom than at the top as some of the potential energy has been changed through kinetic energy into heat energy due to friction between the molecules as they fall.
How are all things interrelated?
All things are related through a single body of energy; the energy within the system that we call "the universe". Everything is comprised of energy, and energy can neither be created or destroyed. The energy within the universe cannot be added to or subtracted from, but it can transform within the system (e.g., potential energy to kinetic energy, matter to photons, chemical energy to kinetic energy, etc.)
Why in a collision momentum is not always conserved?
In principle momentum is always conserved. However what sometimes happens in a collision is that energy is released that is then no longer considered part of the system. For example if two cars collide energy could be dissipated via the air and ground (e.g. heat) and this can also carry away momentum. Often, these effects are not taken into account and in that way momentum conservation appears to be violated; but if one takes care and takes into account all collision products the total momentum after is equal to the total momentum prior. So in short, any violation can be traced back to a redefinition of the system.
