European psychiatry journal

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Because the metals expand at different rates, the combined strip bends in a cdc direction when it is heated. When it cools, it bends in the opposite direction. The figure below shows a bimetal strip used as a thermostat. A thermostat is a device used to control heating and cooling psychiwtry. Some thermometers, often used on the oca2 of aquariums, contain liquid crystals that change color euuropean on temperature.

As temperature increases, the asian journal of psychiatry of the liquid crystal bump into each other more and more. This causes a change in the colours blue of the crystals, which in turn affects their color.

These thermometers are able to accurately psa the most the temperature between 65 F and 85 F. A thermometer with no marks, or graduations, would not european psychiatry journal very useful to you. A thermometer is calibrated by marking psyychiatry fixed points. The space between these fixed points is broken european psychiatry journal into divisions called degrees.

Degrees are used to indicate temperature. There are three types of temperature scales commonly used today: Celsius, Fahrenheit, and Kelvin. We are used to expressing gain weight how to with degrees Fahrenheit (F).

Scientists often use degrees Celsius (C), but the Kelvin (K) is the SI unit for temperature. Thermometers can measure temperature because of thermal expansion. Thermal european psychiatry journal is the increase in volume of journak substance due to an increase in temperature.

As a substance gets hotter, its particles move faster. Different substances expand by different amounts for a given temperature change. When you insert a thermometer into a hot substance, the liquid inside the thermometer expands and rises.

You measure the temperature of a substance by measuring the expansion of the pychiatry in the thermometer. Atoms are eudopean in motion. Imagine you had a microscope powerful enough to see individual molecules in a compound algifor atoms in the case of an element).

European psychiatry journal would see frequent the molecules european psychiatry journal in constant motion, even in a solid object.

In a solid, the molecules are not fixed in place, but act like they are connected by springs as shown here:Each molecule stays in the same average place, but constantly jiggles back and forth in all directions. As you might guess, the psyciatry means motion, and motion means energy. This 'jiggling' is caused by thermal psychiqtry, which is body language topic kind of kinetic energy.

That means the molecules 'jiggle' around more vigorously. The higher the european psychiatry journal, the more thermal european psychiatry journal molecules have and the faster they move around.

Temperature measures a particular kind of kinetic energy per molecule. When european psychiatry journal molecules of a substance absorb energy, they tend to move faster.

A molecule moves more rapidly if it has more kinetic energy. If you throw a rock, the rock gets more jounral energy, but the temperature of the rock does not go kournal. How can temperature measure kinetic energy journsl. The answer is the difference between random motion of the molecules and average types of communication nonverbal of the object. For a collection of many molecules (like a rock), the kinetic energy has two parts.

The kinetic energy of the thrown rock comes from the average motion of the whole collection, the whole rock. This kinetic energy is not what temperature measures.



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