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Concept of which moves faster? (I)
The educational resource shows a visual about fixed stars: today we know that the sun is no more than a star which is near to us. Stars like the sun, which are large gaseous spheres, of which 99% is h ...
The educational resource shows a visual about lunar phases: the moon is a rocky sphere about four times smaller than the earth. Its different aspects (as seen from the earth) are known as lunar phases ...
Concept of dynamic friction coefficient
The educational resource shows a visual about the intensity of the electric field:What are the lines of force like in a field created by two electric charges?
Dimensional equation concept
Concept of attraction among masses
Model of a liquid concept
The educational resource shows how the energy is the capacity to produce changes in the environment by doing work or transferring heat. This means that when a body transfers heat or does work, its ene ...
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