Principle

The heat as the internal energy of a quantity of matter can be changed by the effect of a power over a certain period of time. This energy can be simply understood as the product of the amount of material and the temperature. So the relation between duration of a heating process is proportional to the heated amount of substance, if the supplied power and the temperature difference is equal.

Benefits

• Particularly understandable and didactically prepared description of the experiment (relevance to everyday life etc.) including protocol questions
• Future-oriented teaching: Integration into digital science lessons with tablets
• Increased motivation of students by using the intuitive measureAPP
• Increase of media competence

Tasks

The students heat different amounts of water with an electric heating coil and measure the temperature increase as a function of time.

Learning objectives

Students learn that the time required to heat water by a certain temperature is proportionally dependent on the amount of water to be heated.