Term+2+Heat

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According to some unknown source(probably myself), heat is measured using something known as a "calorimeter".(General Obvious) Galen why is it obvious??? Ellery Not the source, the info wy is de info obvious? it is said in the eureka videos.... It is not me!!!!!!!!!!!!!!!!!!!! Meng Loong

It can also be measured in joules anyway,the units of temperature are degree celsius or Kelvin.Temperature is measured with a thermometer and heat is measured using a joule-meter. Anything that Gives off heat is known as a heat source. The sun is our most important source of heat.The sun's heat is absorbed by seas, ground, plants and atmosphere. Nothing will be able to live without the sun. The earth is another large source of energy. THis form of energy is called geothermal energy.

METHODS OF PRODUCING HEAT -Rubbing your hands together(Friction) -Electricity -Chemical reactions

-By Joshua Goh(NOT classified under Methods of producing heat)

NOTE: Difference between "HEAT" and "TEMPERATURE" //Heat// is a measurement of total energy in a substance and //temperature// is a measure of //heat// content of the substance. You can also check out the "Eureka!" videos Mr. Lin may have shown previously. [|E21-Temperature VS Heat] [|E20 - Measuring Temperature] [|E19- Expansion and Contraction]

[|Heat] [|Heat transfer] wikipedia articles on heat and heat transfer

Heat flow from a hot to a cold body occurs spontaneously. This flow of energy can be harnessed and converted into useful work by means of a [|heat engine]. The [|second law of thermodynamics] ensures that heat flow from a cold to a hot body never occurs, although external work can be employed to "[|pump]" thermal energy from cold to hot. Heat can be measured with a [|calorimeter], or determined indirectly by calculations based on other quantities, relying for instance on the the [|first law of thermodynamics]. [|Heat transfer] can occur in a variety of ways: by [|conduction][|[][|3][|]], radiation,[|[][|4][|]] [|convection], [|net mass transfer], friction or viscosity,[|[][|5][|]] and by chemical dissipation.[|[][|6][|]][|[][|7][|]][|[][|8][|]] In physics, especially in [|calorimetry], and in [|meteorology], the concepts of //[|latent heat]// and of //[|sensible heat]// are used. Latent heat is associated with phase changes, while sensible heat is associated with temperature change, and is equivalent to [|thermal energy] when stored in an object or system. In common usage, the noun //heat// has a broader meaning, and can refer to [|temperature] or to the sensation felt when touching or being close to a high-temperature object. ByMeng Loong
 * Heat** is [|energy] transferred from one [|system] to another by thermal interaction.[|[][|1][|]][|[][|2][|]] In contrast to [|work], heat is always accompanied by a transfer of entropy. Heat is a characteristic of [|macroscopic] objects and systems, but its origin and properties can be understood in terms of their microscopic constituents.

_

Here is a video about heat transfer: [|Can You Feel The Heat:Heat Transfer] Hope you like it.:)Yoke Ting

If you still do not really undestand about heat transfer, you may watch this video: [|Understanding Heat Transfer] Posted by: Yoke Ting

media type="youtube" key="f1eAOygDP5s" width="425" height="350"

video posted!!!!!happy?joshuawei

media type="youtube" key="9NdrDkbrpN0" width="425" height="350" sorry about the beginning joshua wei again

if u STILL don't get it, [|Conduction Convection Radiation:Heat Transfer] Ellery [|Thermoregulation] here is a wikipedia article on thermoregulation(sum kind of heat transfer i tink) Ellery now i remember how 2 widget cooool! - ethan y is it cool? ellery sum other stuff. . . [] posted by ellery ___ Here are some challenging science questions: 1. It takes a long time to heat up all the water in a beaker if the water is heated from the top. Why is this so? A Water is a poor conductor of heat energy. B Water is a poor absorber of heat energy. C Water radiates heat energy quickly from the surface. D The heat energy is lost to the surrounding air quickly from the water surface. D 1338260660 2. Which surface will cause the thermometer to register the highest reading if the four cans are placed under the Sun?

A Rough, black surface ** B ** Black, shiny surface C Rough, white surface ** D ** Shiny, silver surface Yoke Ting-

my answers: Q1)C Q2)B ellery P.S sorry about bad spelling and shortforms but i hate using proper words B 1338260720 anyway, can sumone post de correct answers PLS???!!!