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visualisation
Concept of speed and mass of the electrons
Concept of attraction among masses
The educational resource shows a Flash animation about the greenhouse effect The Earth is an open material system, because it interchanges matter and energy with outer space.
Concept of matter has inertia
Concept of density. Performing calculations
Concept of attraction among masses
The educational resource shows a visual about the difference between mass and weight: mass is not the same as weight, although in ordinary life both words are used with the same meaning. In Physics, m ...
Concept of matter has volume
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