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2. Heat - Wikipedia

   en.wikipedia.org/wiki/Heat

   In thermodynamics, heat is the thermal energy transferred between systems due to a temperature difference. [1] In colloquial use, heat sometimes refers to thermal energy itself. Thermal energy is the kinetic energy of vibrating and colliding atoms in a substance. An example of formal vs. informal usage may be obtained from the right-hand photo ...

3. Thermodynamics - Wikipedia

   en.wikipedia.org/wiki/Thermodynamics

   Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of thermodynamics, which convey a quantitative description using measurable macroscopic physical quantities ...

4. Heat wave - Wikipedia

   en.wikipedia.org/wiki/Heat_wave

   A heat wave[1] or heatwave, [2] sometimes described as extreme heat, is a period of abnormally hot weather. [3]: 2911 Definitions vary but are similar. [4] A heat wave is usually measured relative to the usual climate in the area and to normal temperatures for the season. [3]: 2911 Temperatures that humans from a hotter climate consider normal ...

5. Laws of thermodynamics - Wikipedia

   en.wikipedia.org/wiki/Laws_of_thermodynamics

   e. The laws of thermodynamics are a set of scientific laws which define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium. The laws also use various parameters for thermodynamic processes, such as thermodynamic work and heat, and establish relationships ...

6. Thermal energy - Wikipedia

   en.wikipedia.org/wiki/Thermal_energy

   The term " thermal energy " is often used ambiguously in physics and engineering. [1] It can denote several different physical concepts, including: Internal energy: The total energy contained within a body of matter or radiation. Heat: Energy in transfer between a system and its surroundings by mechanisms other than thermodynamic work and ...

7. Temperature - Wikipedia

   en.wikipedia.org/wiki/Temperature

   Temperature is one of the principal quantities in the study of thermodynamics. Formerly, the magnitude of the kelvin was defined in thermodynamic terms, but nowadays, as mentioned above, it is defined in terms of kinetic theory. The thermodynamic temperature is said to be absolute for two reasons.

8. Convection - Wikipedia

   en.wikipedia.org/wiki/Convection

   Natural convection is a flow whose motion is caused by some parts of a fluid being heavier than other parts. In most cases this leads to natural circulation: the ability of a fluid in a system to circulate continuously under gravity, with transfer of heat energy. The driving force for natural convection is gravity.

9. Extreme heat can be dangerous for kids. Here's how to keep ...

   www.aol.com/lifestyle/extreme-heat-pose...

   "Kids' bodies produce heat faster than adults and they can't get rid of that heat as quickly," she explains. As a result, children can get sick in extreme heat, and do so faster than many adults ...