It has long been used yet this unit of measurement of heat as calorie. Now this unit is often used

Purpose: to form students' initial idea of the amount of heat as a measure of change in internal energy of the body, the concept nachos cheese sauce recipe of specific heat of the substance; develop skills to solve problems of the quantity of heat; examine the level of educational competency of students; develop the ability to establish laws based on experiments, develop cognitive interest; cultivate mindfulness.
2. What are the different types of thermometers.
8. Why heated metal wire if it repeatedly bend and roses ihnuty?
It has long been used yet this unit of measurement of heat as calorie. Now this unit is often used for calculating the energy released as a result of food consumption: 1 cal = J 4.2.
Thus, the amount of heat required to heat the body (or body highlighted during cooling), depends on the type of substance, which is the body of the weight of the body and by changing its temperature.
You can add a formula: Q = smΔt = sm (t 2 - t 1)
where Q - the amount of heat tons - weight substances, Δt - temperature change, s - coefficient of proportionality, which is determined kind of matter, it is called specific heat of a substance.
V. Understanding the objective relations
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