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Cathode ray tube

Concept of cathode ray tube

Change of phase

The educational resource shows an interactive animation about the change of phase: solids melt when they are heated and liquids evaporate, changing to a gaseous state. If you increase the vibration of ...

Equilibrium between different states

The educational resource shows an interactive animation about the equilibrium between different states: a substance (water, for example) in different states at different temperatures (ice and water) w ...

The principle of superposition (II)

The educational resource shows a visual about the intensity of the electric field: a body's electric charge alters the space which surrounds it. The magnitude which measures this alteration at a deter ...

Ten to the power of..

Concept of scientific notation

Scales of observation

Definition of scales of observation

Non-inertial reference frames

Concept of non-inertial reference frames

Apparent gravity

The educational resource shows a visual about the apparent gravity: the gravitational field intensity, g, is not the same everywhere on the surface of the earth. If the period of the rotation were dif ...

Kepler´s laws

The educational resource shows a visual about Kepler´s laws: Kepler used as his basis, both the results of his observations and those of his Astronomy professor, Tycho Brahe, "the last geocentric astr ...

Electric potential and work

The educational resource shows a visual about the relation between field intensity and potential: the work carried out by the field when a charged particle q moves from one point to another, only depe ...

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