Temperature Kim Lachler Updated 2015 NCES: 6.P.2. & 3.
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Transcript of Temperature Kim Lachler Updated 2015 NCES: 6.P.2. & 3.
TemperatureTemperature
Kim Lachler
Updated 2015
NCES: 6.P.2. & 3
TemperatureTemperature
Heat_and_Temperature.mov
Measure of average kinetic energy of Measure of average kinetic energy of the particles in a objectthe particles in a object
TemperatureTemperature
Particles of objects move randomly and at Particles of objects move randomly and at different speeds, thus, temperature is an different speeds, thus, temperature is an averageaverage
The more kinetic energy the particles of an The more kinetic energy the particles of an object has, the higher the temperature the object has, the higher the temperature the object will be.object will be.
How a Thermometer How a Thermometer WorksWorks
11stst
many thermometers are a thin glass tube filled with many thermometers are a thin glass tube filled with liquidliquid mercurymercury alcoholalcohol
How a Thermometer How a Thermometer WorksWorks
22ndnd
Thermal expansion or Thermal expansion or thermal contraction thermal contraction takes placetakes place
As temperature increases As temperature increases the liquid expands the liquid expands
As temperature As temperature decreases the liquid decreases the liquid shrinksshrinks
How a Thermometer How a Thermometer WorksWorks
33rdrd
Scales where Scales where etched out on the etched out on the glass tube to read glass tube to read the temperaturethe temperature
How a Thermometer How a Thermometer WorksWorks
Common scalesCommon scales
Fahrenheit Fahrenheit CelsiusCelsius KelvinKelvin
Water boilsWater boils 212212˚̊ 100100˚̊ 373373
Body temp.Body temp. 98.698.6˚̊ 3737˚̊ 310310
Nice DayNice Day 6868˚̊ 2020˚̊ 293293
Water freezesWater freezes 3232˚̊ 00˚̊ 273273
How a Thermometer How a Thermometer WorksWorks
Common scalesCommon scales
Absolute Zero – temperature at which no more Absolute Zero – temperature at which no more energy can be removed from a substanceenergy can be removed from a substance
0 Kelvin = -273 Celsius0 Kelvin = -273 Celsius
Temperature vs. amount Temperature vs. amount of heat.of heat.
Which beaker has the higher temperature if both are at room temperature?
They are at the same temperature. They are both at room temperature.
Which beaker has the most heat?
The 500 ml beaker. It has more volume.
The amount of heat is determined by both the temperature and the amount of the substance present.
It also takes more energy to heat the 500 ml beaker then the 300 ml beaker to the same temperature.
Conductors vs. InsulatorsConductors vs. Insulators
Some materials transfer energy better Some materials transfer energy better than othersthan others
Conductors vs. InsulatorsConductors vs. Insulators
ConductorsConductors transfer energy; heat and electricity quicklytransfer energy; heat and electricity quickly
MetalsMetals WaterWater
Conductors vs. InsulatorsConductors vs. Insulators
InsulatorsInsulators
Insulation.mov Insulators- transfer energy; heat and electricity slowlyInsulators- transfer energy; heat and electricity slowly
airair fiberglassfiberglass
BibliographyBibliography
Fotosearch,Temperature Stock, http://www.fotosearch.com/photos-images/temperature.html, accessed Fotosearch,Temperature Stock, http://www.fotosearch.com/photos-images/temperature.html, accessed 12/29/201012/29/2010
Google imagesGoogle images