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•HEAT
It is a form of energy that makes molecules and atoms move
faster.
•TEMPERATURE
The measure of the degree of
hotness or coldness of a body.
•UNITS FOR MEASUREMENT OF TEMPERATURE
• CELSIUS
• FAHRENHEIT
• KELVIN
SI Unit of heat is Joule
•THERMOMETER: An instrument for measuring temperature.
•THERMOMETER: •Clinical thermometer
•Labratary thermometer
•Depending up on the liquid inside the thermometer, they can be called
as mercury thermometer or alcohol thermometer.
•Clinical thermometer is scaled from 35 to 42 degree Celsius or from 94
to 108 degree Fahrenheit. The normal body temperature is 37 degree
Celsius or 98.6 degree Fahrenheit.
•ADVANTAGES & DISADVANTAGES OF MERCURY.
• Mercury is a good conductor of heat, so quickly reaches
the temperature of the surrounding.
• It’s shining silver color is easily visible
• It does not stick to the glass.
• It’s very expensive and it is poisonous.
ADVANTAGES & DISADVANTAGES OF ALCOHOL
• It’s cheaper
• Less harmful
• Can measure much lower temperatures
• Cannot be used to measure high
temperatures.
•TRANSFER OF
HEAT
•CONDUCTION • CONVECTION • RADIATION
•CONDUCTION
The process of transfer of heat from the
hotter to the colder end of a body.
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