Generalidades sobre disoluciones quimicas.

En el universo existe una serie de características que permiten identificar una sustancia y distinguirla de las demás; al conjunto de ellas se les llama propiedades de la sustancia las cuales suelen ser físicas o químicas, esto es de gran interés en el cotidiano, porque así podemos identificar cuando se presenta un cambio reversible (no se altera la materia), irreversible (transformación de la materia en una nueva sustancia), lo cual nos lleva a entender la realidad circundante.

Presentación sobre códigos QR y su aplicación didáctica

Listening Comprehension Exercise (Video on YouTube) about Paris (France) for students of 4 CSE (4 ESO).

Concept of optical prism

Método de análisis aplicado a los problemas de propagación de ondas. Se llama así en honor a los físicos Christiaan Huygens y Augustin-Jean Fresnel

En el visual se ve cómo se comporta la luz cuando atraviesa una lente bicóncava y una biconvexa.

Concepto de viajes interestelares

The theorem of live forces establishes that the work carried out by the forces acting on a system, is equal to its kinetic energy.

The following visual studies the work done by a pendulum: it is difficult to calculate as the force which acts on it varies constantly.

When we stretch a spring, the work we carry out varies as we stretch it. The following visual simulates the force exerted by a student on a spring. Choose a force constant for the spring and start the visual.

The forces of friction, which oppose displacement, also carry out work when a body is moving. The work of friction is converted into heat. The greater the force of friction, the more force must be exerted to move the body. Verify how friction affects the displacement of some blocks.

The educational resource shows information about the concept windy energy and its advantages and its disadvantages.

Which UAM moves at a greater speed?

Which URM moves at a greater speed?

Work is one of the ways of transmitting energy between bodies. The following visual will help you understand the concept of work by modifying the force and the angle which it forms with the horizontal. Click on help to see the possibilities it offers.

The educational resource shows a visual about the work: in Physics, for there to be work there must be a force acting on an object and displacement of the object.

En este documento enumeramos las principales propiedades de la función determinante de una matriz cuadrada, con ejemplos. Recordad que existen reglas para el cálculo del determinante (como Sarrus y Laplace), que no proporcionamos por su extensión. Temas de matrices: Suma de matrices Multiplicar matrices (1) Multiplicar matrices (2) Eliminación de Gauss (1) Eliminación de Gauss (2) Determinantes de matrices (1) Determinantes de matrices (2) Matriz inversa (1) Matriz inversa (por Gauss) (2) Ma...

Concept of normal force: is the force exerted by a surface on a body which is resting on it.

Concept of Newton. The newton is the unit of force in the International System of Units.