Saturday, February 9, 2008

Activity 3.3 Question

If energy is neither created or destroyed, where does it go?



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15 comments:

DeAnna said...
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DeAnna said...
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DeAnna said...

The Law of Conservation of Energy states that energy is neither created or destroyed. This energy is transferred into other forms of energy. Electrical, chemical, thermal, nuclear, and radiant. Some energy is transferred to the environment, in the form of heat,(see paper clip experiment). So constantly, energy is being transfered. Feel your keyboard. The heat from your hands made the keyboard feel warmer. There are many different forms to "where" the energy could go.

Christopher Noda said...

The Law of conservation of heat states that energy cannot be created or destroyed. What it means by this is energy cannot come out of nowhere or magically be destroyed. If energy seems to be there one second and gone the next it simply changed forms. For example when water heats up its turns to stem or air. The energy from the water was not destroyed simply it changed from to steam. Energy is constantly being transfered to the environment in a form of heat. In the paper clip experiment we conducted the paper clip produced heat when bent into different shapes and quickly changed back. Energy is constantly on the move and always forms so there is no way energy can be created or destroyed.

Jackie Schechter said...

Energy cannot be created or distroyed, instead it goes to the enviorment. Energy is constently lost and gained by orginisms and objects in an inviorment. Energy lost goes into other things and simply changes forms, but is the same energy that was lost by the first orginism.

Jackie Schechter said...
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Jametria Wright said...

Organisms respond differently to environmental conditions. Homeotherms maintain fairly constant body temperatures despite the changes in environmental temperatures. They're body temperatures remain substantially higher than the temperature surrounding them, which means that they can usually remain active through a wide range of external temperatures. Some animals that are classified as homeotherms are birds and mammals. Poikilotherms maintain higher internal temperatures than some warm-blooded animals, and it changes with the surrounding environment. Most poikilotherms are less active when the surrounding temperatures are low and become more active as the temperature increases. The primarily act in behavioral responses when the external temperature changes. Animals that are listed as poikilotherms are reptiles and fish.

matt tao said...

The Law of Conservation of Energy states that energy cannot be created of destroyed. Then according to the First Law of Thermodynamics the heat goes to colder areas of temperature.An example of this would be if there is a pot of boiling water and you left it there and you came back and it was cold, all that heat in the pot would have gone to the air because of the First Law of Thermodynamics.

Anonymous said...

According to the law of the conservation of energy, energy is niether created or destroyed. This means that energy must go some where. Energy is transferred into different froms energy sometimes unattainable or usable. Therefore it is then considered "lost." In an energy Transfer usually not even half of the energy moves on to the next level or transfer. This means that through this process there is always energy that cannot be used which leaves less energy than there was to begin with.

Suzie said...

The Law of Conservation of energy states that energy can't be created or destroyed. Energy always has a source. If energy enters a system, it didn't appear out of nowhere, it was transferred from another object, and when energy leaves a system, it is not destroyed, it transfers to another object. During these transfers, some energy is given off to the environment. In a transfer of energy from the "food" organism to the consumer, not all energy is recieved by the consumer. It is not 'lost,' though; it was used by the other organism as thermal and mechanical energy. This shows that energy is always transferred to another organism, place, or for use, but can never appear or disappear out of thin air.

Meagan M. said...

During energy transfers, a certain amount of energy sometimes escapes to the environment. This happens because of the 2nd Law of Thermodynamics, which states that heat always flows to areas of lower temperature. Unless the system is insulated, heat will escape to the air or another region that has a cooler temperature. The energy has not been destroyed; it has simply been transferred to another object. When energy is transferring to a different trophic level, most of the energy is lost to heat, and some is left in portions of food uneaten or undigested by the consumer. The important thing to remember is that energy is never created or destroyed, but rather it is transferred.

Christine Jackson said...

Because energy cannot be either created or destroyed, it is transformed. For example, when you drive a car, chemical energy from the burning gas is transformed into mechanical energy to move the car along a road.

Lucy Lloyd said...

The Law of conservation of energy states that energy cannot be created or destroyed. When not all energy is passed on to the next trophic level or the next organism/material, this means that the energy either goes into the air, or turns into a form of energy that is not able to be used by us. Heat and energy always escapes into the air during energy transfers.

shruza said...

According to the Law of Conservation of Energy, energy is neither created nor destroyed and according to the First Law of Thermodynamics which states that all heat entering a system adds that amount of energy to the system. When energy is transferred from one form of energy to another or energy is transferred from one physical system to another, the amount of energy that is left after the transfer is less than at the start. This energy that seems to be “lost” is merely unattainable. For example, when boiling water is poured into cold water, some of the thermal energy from the boiling water is transferred to the air as well as to the cold water. This makes sense according to the Second Law of Thermodynamics which states that energy always flows from areas of warmer temperatures to areas of colder temperatures. In the previous scenario, the air and the cold water were colder than the boiling water and when the boiling water was being combined with the cold water, it is being exposed to the air so its thermal energy is transferred to both the cold water and the air.

hnori said...

There is a decrease in usable energy in every energy transfer. After we use the energy, it simply becomes unusable, and not destroyed. The energy still exists, and will continue to do so until humans can harness its power.