Archive for the ‘Heat’ Category

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what this page is about.

June 14, 2007

This page/blog is information about heat and things related to it.

Its not in very good order though so dont get confused and or angry.

                        And     you     should    watch     the      video     about       

                   0…………………………!!!!!elmo burning!!!!! …………………………..0

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solar radiation

June 14, 2007

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Why heat transfer is important

June 11, 2007

Heat transfer is of particular interest to enginerers, who attempt to understand and control the flow of heat through the use of thermal insulation, heat exchangers, and other devices. Heat transfer is typically taught as undergraduate and graduate subjects in both chemical and mechanical engineering curricula

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Heat Transfer

June 11, 2007
  • In thermal physics, heat transfer is the passage of thermal energy from a hot to a cold body. When a physical body, e.g. an object or fluid, is at a different temperature than its surroundings or another body, transfer of thermal energy, also known as heat transfer, occurs in such a way that the body and the surroundings reach thermal equilibrium. Heat transfer always occurs from a hot body to a cold one, a result of the second law of thermodynamics. Heat transfer can never be stopped; it can only be slowed down.
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Tickle Me Elmo

June 11, 2007

 In this video ‘Elmo’ is the fuel as he is made of flammable material, he is also doused in a flammable liquid which is classed as potential energy. When ‘Tickle-Me Elmo’ is burning he is producing Heat energy and Light energy. ‘Tickle-Me Elmo’ also runs on batteries, which are the source of his movement, this is kinetic energy.

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Heat Is Thermal Energy

June 7, 2007

Heat is thermal energy in transit Heat is the temperature of an object Heat is the number of degrees Celsius 2. How is energy transferred by conduction? Air circulates and transfers heat Particles collide and transfer energy Electricity is conducted through materials 3. What is a calorie? Measurement how fat you are The same as a BTU The unit of measurement of heat If you got all three correct, you are on your way to becoming a champion in science. If you had problems, you had better look over the material again.

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June 7, 2007

Heat is thermal energy in transit Heat is the temperature of an object

Heat is the number of degrees Celsius

2. How is energy transferred by conduction?

Air circulates and transfers heat

Particles collide and transfer energy

Electricity is conducted through materials

3. What is a calorie?

Measurement how fat you are

The same as a BTU

The unit of measurement of heat

If you got all three correct, you are on your way to becoming a champion in science. If you had problems, you had better look over the material again.

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Heat summary

June 7, 2007
  • Our body functions best at a temperature of about 37 degrees. If we get to cold or hot we get/or feel uncomfortable. If our body temperature rises to high or goes below normal we can die. A sparkler has a high temperature but has very little heat.
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    June 7, 2007

     

    • Generally, heat is a form of energy transfer, sometimes called thermal energy, associated with the different motions of atoms, molecules and other particles that comprise matter when it is hot and when it is cold. High temperature bodies, which often result in high heat transfer, can be created by chemical reactions (such as burning), nuclear reactions (such as fusion taking place inside the Sun), electromagnetic dissipation (as in electric stoves), or mechanical dissipation (such as friction). Heat can be transferred between objects by radiation, conduction and convection. Temperature is used as a measure of the internal energy or enthalpy, that is the level of elementary motion giving rise to heat transfer.
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    heat transfer

    June 5, 2007

    Heat transfer

    Thermal energy is transferred from an object of high temperature to one of lower temperature by conduction, convention and radiation. This process is usually called heat transfer or heat flow, although it is the thermal energy that is really being transferred. Heat is the amount transferred