TERMOMETER SEBAGAI ALAT UKUR SUHU BENDA

A TOOL TO MEASURE TEMPERATURE THERMOMETERS OBJECTS

Understanding the temperature is the degree of hotness or coldness of a substance. Thus, any object confirmed hot temperatures higher than the temperature of the cold object. The sense of touch to determine the quality of hotness or coldness of a thing: but the sense of touch can not determine the exact temperature of the object. To precisely measure the temperature of objects to be used temperature measuring devices called thermometers. In general, the thermometer works by volume changes. Generally recognized four types of thermometers, the thermometer Celsius thermometer Reamur, thermometer Fahrenheit, and Kelvin thermometer.

The comparison for each thermometer as follows.

                                 
                                C    :     R    :   F ± 32   :   K ± 273

                              100   :     80    :     180      :    100

                                5     :     4      :      9          :     5

Based on figures from the comparison of each thermometer states that: If the thermometer shows Celsius scale of 5, the thermometer Reamur 4 point scale, Fahrenheit thermometer shows the scale (9 + 32), and the Kelvin thermometer shows the scale (5 + 273).

example:

A physician measures the patient's temperature using a thermometer. Apparently 40⁰C thermometer scale. How derajatkah if the patient's temperature is measured using a thermometer Reamur, Fahrenheit and Kelvin?

Answer:

t⁰ C = (4/5 x t⁰) R

40⁰ C = (4/5 x t⁰) R

    = 4/5 x 40⁰ R

    = 32⁰ R

t⁰ C = (9/5 x t⁰) + 32⁰ F

40⁰ C = (9/5 x 40⁰) + 32⁰ F

   = (72⁰) + 32⁰ F

   = 104⁰ R

t⁰ C = (5/5 x t⁰) + 273⁰ K

40⁰ C = (5/5 x 40⁰) + 273⁰ K

   = (40⁰) + 273⁰ K

   K = 313⁰

Sources: Energy and Changes, Post-uka Training Learning Materials for Teachers Classroom, Educators Professional Development Center, BPSDMPK AND PMP, KEMDIKBUD 2012

Translated in English by ncos