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Science.

Understand the ideas of physics, chemistry, and mathematics through articles, concepts, and examples connected to their sources.

Knowledge base

A quantity that makes it possible to describe and account for physical transformations.

The rate at which energy is transferred or transformed.

An atom or group of atoms with a net electrical charge.

Transformation involving changes in oxidation states.

A disturbance whose propagation makes it possible to transmit signals and energy.

Number of repetitions of a periodic phenomenon per unit of time.

Distance between consecutive points on a wave that are in the same phase.

Maximum value of a variation relative to equilibrium in a defined oscillation.

A material system whose interactions transmit a mechanical disturbance.

The sum of the values in a set divided by its number of observations.

A measure of center that divides ordered data into two halves.

Measure of dispersion expressed in the same units as the data.

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