When does thermal energy change?

Answer 1

An object loses thermal energy any time it is in an environment where there "ambient" temperature is lower than that of the object. It is the difference in temperatures between the object and its surrounds that will determine the speed of the heat loss (along with other factors like insulation and the composition of the object and the surrounds, etc.). If we consider the case of a red hot piece of iron, it will begin to cool immediately in air when removed from a furnace. It will cool a bit faster when put into a working freezer, and much faster when put into water of the same temperature as the air around it. All of this makes sense if we think about it. In general, everything is continually gaining and losing energy. If all the objects in a room are "soaking" at the ambient temperature, they are all gaining and giving off thermal energy, and they are all doing this at equilibrium. That's how they hold their temperature. Think about this. It is the key to understanding a basic principle of thermodynamics. Here's why. A bunch of objects in a closed environment that have been there a good while are constantly giving off and capturing thermal energy, but are doing so in a way that they do not change temperatute. Start to monkey with the temperature in the environment and things go haywire. With an understanding of the constant nature of the "circulating thermal energy" in a closed system, you can initiate an investigation of how thermodynamics works, and you can figure out why something like, say, a thermal imaging camera, will work so well.

Answer 2

Thermal energy changes when heat is transferred in or out of a system, causing the temperature of the system to increase or decrease. Heat transfer can occur through conduction, convection, or radiation.

Answer 3

Technically, energy can't get lost, since you can't create energy or make it disappear. However, it is possible to convert usable energy into unusable energy - in fact, it happens all the time, and is unavoidable. Energy gets "lost" in this way whenever a movement is slowed down through friction, but there are some other cases, as well. For example, when two recipients have water at different temperatures, part of the temperature difference could be converted to another kind of energy. Once the water in the two recipients gets mixed, this is no longer possible - the energy has been wasted.

Technically, energy can't get lost, since you can't create energy or make it disappear. However, it is possible to convert usable energy into unusable energy - in fact, it happens all the time, and is unavoidable. Energy gets "lost" in this way whenever a movement is slowed down through friction, but there are some other cases, as well. For example, when two recipients have water at different temperatures, part of the temperature difference could be converted to another kind of energy. Once the water in the two recipients gets mixed, this is no longer possible - the energy has been wasted.

Technically, energy can't get lost, since you can't create energy or make it disappear. However, it is possible to convert usable energy into unusable energy - in fact, it happens all the time, and is unavoidable. Energy gets "lost" in this way whenever a movement is slowed down through friction, but there are some other cases, as well. For example, when two recipients have water at different temperatures, part of the temperature difference could be converted to another kind of energy. Once the water in the two recipients gets mixed, this is no longer possible - the energy has been wasted.

Technically, energy can't get lost, since you can't create energy or make it disappear. However, it is possible to convert usable energy into unusable energy - in fact, it happens all the time, and is unavoidable. Energy gets "lost" in this way whenever a movement is slowed down through friction, but there are some other cases, as well. For example, when two recipients have water at different temperatures, part of the temperature difference could be converted to another kind of energy. Once the water in the two recipients gets mixed, this is no longer possible - the energy has been wasted.

Answer 4

When:

• it slows down
• it cools down
• it looses chemical energy to form a more stable product
• it looses its pressure
• it gets closer to the center of gravity

Answer 5

For the matter of thermal energy transfer ,it required temperature difference.

For the matter of changing form, it would still required a temperature difference with some mechanism transforming thermal energy into mechanical or electrical energy.

Answer 6

Technically, energy can't get lost, since you can't create energy or make it disappear. However, it is possible to convert usable energy into unusable energy - in fact, it happens all the time, and is unavoidable. Energy gets "lost" in this way whenever a movement is slowed down through friction, but there are some other cases, as well. For example, when two recipients have water at different temperatures, part of the temperature difference could be converted to another kind of energy. Once the water in the two recipients gets mixed, this is no longer possible - the energy has been wasted.

Answer 7

A substance gains thermal energy as the temperature of the substance increases, because the particles of the substance vibrate more as this happens.

Answer 8

When all thermal energy is lost, the temperature of the substance is Zero Kelvin, or absolute zero. So far, this temperature has not been achieved yet.

Answer 9

Usually the "thermal energy" will increase since work ON the system adds energy. Thermal energy is really not the best term though. A much better term in thermodynamics would be ENTHALPY.

Answer 10

the force is doing work