https://padlet.com/giorgiaaloi1/Fisica Realizzato senza qualunque rimpianto en-us 2018-11-26 19:52:38 UTC 2025-11-10 12:50:49 UTC hello@padlet.com giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/307998583 Temperature is measure of hotness or coldness, the symbol of this greatness is T and also be used to measure the degree of heat.]]> 2018-11-26 20:00:26 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/307998583 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308011844 A thermometer is a device that measures temperature or a temperature variation. They are based on specific functioning :
~The thermal expansion of liquid, gaseous and solid substance
~The electrical resistance of a material ]]> 2018-11-26 20:25:20 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308011844 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308015464 There are three different kinds of thermometer:
~Mercury thermometer 
~Gas thermometer
~Bimetallic strip thermometer
~Digital thermometer
~Thermocouple thermometer
~Infrared thermometer

]]> 2018-11-26 20:34:08 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308015464 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308018418 Is compose of glass tube containing mercury. The variation in temperature causes change in volume of the mercury.]]> 2018-11-26 20:41:46 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308018418 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308019351 Measure the temperature through the variation of volume or pressure of a gas contained inside a glass tube and is uses for the calibration of other thermometer.]]> 2018-11-26 20:43:53 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308019351 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308023774 It is formed by a leaf shaped U or spiral, consisting into two metals with different coefficient of expansion that are welded together, one on the outside and the other in the inner part of the lamina. One of the border of the lamina is connected to an index.]]> 2018-11-26 20:53:58 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308023774 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308025625 Uses a sensor consists of a thermistor powered by an electric current, when the temperature changes cause in the sensor the electrical resistance.]]> 2018-11-26 20:57:52 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308025625 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308028421 Uses a sensor consisting of two metals welded together which have the property to develop a different value voltage and it is the result changed in temperature.]]> 2018-11-26 21:05:01 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308028421 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308031650 This permits temperature measurement from a distance without contact with the object to be measured. It is based on the reflection of radiation from hotter boy.]]> 2018-11-26 21:13:19 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308031650 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308033797 A thermometer is calibrated by using two objects of known temperatures. The typical process involves using the freezing point and the boiling point of water. By placing a thermometer liquid to reach a stable height,similar by placing the thermometer in boiling water and allowing the liquid level to reach the height and mark the thermometer.]]> 2018-11-26 21:19:07 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308033797 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308037148 There are three different kinds of temperature scale:
~Celsius scale
~Kelvin scale
~Fahrenheit scale]]> 2018-11-26 21:30:14 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308037148 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308038447 It is also called ''centigrade temperature scale'' is the scale based on 0 for the freezing and the 100 for the boiling point of water. Was invented by Anders Celsius, astronomer.]]> 2018-11-26 21:35:07 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308038447 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308039498 The Kelvin temperature scale is the standard metric system of temperature measurement and perhaps the most widely used temperature scale among scientists, and it is similar to the Celsius scale. The zero point on the Kelvin scale is known as absolute zero and it is the lowest temperature that can be achieved.]]> 2018-11-26 21:38:18 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308039498 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308040785 The conversion from Celsius to Kelvin scale is very simple.

• °C = K – 273,15°
• K = °C + 273,15°]]> 2018-11-26 21:42:01 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308040785 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308042507 Is a scale based on 32 for freezing and 212 for boiling point of water, the interval between the two point is divided into 180 parts. The conversion formula for a temperature is expressed on the Celsius scale to its Fahrenheit:

• °F = 9/5 °C + 32

While following the formula can be used to convert a temperature from its representation on the Fahrenheit scale to the Celsius:

• °C = ( °F – 32) / 1,8
DOVE 1,8= 9]]> 2018-11-26 21:47:55 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308042507 giorgiaaloi1 https://padlet.com/giorgiaaloi1/Fisica/wish/308045273 Celsius,Kelvin and Fahrenheit...]]> 2018-11-26 21:57:38 UTC https://padlet.com/giorgiaaloi1/Fisica/wish/308045273