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SOUND AND TEMPERATURE HEAT


TEMPERATURE Temperature is a measure of thermal energy a substance . This definition tells us that when increasing the temperature of any body, also increases the vibration of its molecules. The temperature would, therefore, quantification of the kinetic energy (due to vibration) of the molecules that make up a body.
In the following video explains how in a gas the particles move and this vibration is responsible for the temperature. In the other states of matter temperature is also dependent on the vibration of particles that are presented each substance or material body.



EFFECTS OF TEMPERATURE
As a result of increased vibration, the temperature increase occurs, the dilation of the body and can also produce state changes in a material body.

MEASURE TEMPERATURE
The temperature is measured with thermometers. Traditional thermometers contain mercury bulb, widening at its base filled with mercury. This bulb extends into a capillary. The increase in temperature causes a dilation of mercury and varying the capillary rise. The same procedure followed by alcohol thermometers.
The units of temperature measurement are degrees that can be: degrees Celsius or degrees Kelvin Farenheitt.
The equivalence between degrees Celsius and Kelvin is achieved by adding 273 ° to obtaining degrees the temperature in degrees Kelvin.

HEAT AND THERMAL BALANCE
Heat is a type of heat but the heat energy is transferred from one body to another. Whenever the body is transferred from higher temperature to lower temperature, regardless of their relative sizes.
The transferancia heat between two bodies is produced until it reaches thermal equilibrium is achieved when the temperatures are equal for both.
heat units are measured in units of energy, therefore measured in joules although traditionally measured in calories. The equivalence between the two units is:

1 calorie = 4.184 joules

HEAT TRANSFER

Heat can be transferred from one body or system to another material in several ways:

• Driving: sound transmission.


• Convection: transmission fluids: liquids, gases or solids with great plasticity.


• Radiation: electromagnetic radiation through the heat can transfer through vacuum.

VIRTUAL LABORATORY
VIRTUAL LABORATORY (II) Various experiments on heat transfer.