Hydrostatic pressure varies with depth and the density of the liquid. In this visual and using a somewhat strange receptacle, you can verify this equation

La presión mide "el reparto" de una fuerza sobre una superficie. Se define como la "fuerza aplicada perpendicularmente sobre cada unidad de superficie".

Pressure Concept

La prensa hidráulica es una aplicación del principio de Pascal: un depósito con dos émbolos de distinta sección conectados a él permite amplificar la fuerza aplicada en el émbolo pequeño y además cambia la dirección de la fuerza aplicada

Una partícula se mueve dentro de un pozo de energía potencial. Dos barreras infinitas impiden que la partícula se escape de él. El comportamiento cuántico de la partícula se refleja en la onda que la representa.

Power measures the speed with which work is done. It is measured in watts, W, in the International System of Units. The following visual will help you to understand this concept more clearly as you see the work done by a jack to lift a car.

The speed with which work is done is called power. To lift the same object to the top implies carrying out the same amount of work. To lift it at a different speed, implies using a different amount of power.

The power switch is one of the elements of a consumer unit.

The educational resource shows a visual about the potential energy: two balls are on the point of falling, they possess gravitational potential energy. When they reach the snow they will modify their state. What will this depend on?

The atoms are usually neutral state. The agitation of a gas increases when it absorbs heat. If enough heat is absorbed, electrons are stripped from atoms and matter is ionized, saying that it is in plasma state.

Concepto de plasma. Estado de plasma. Descripción del estado de agregación de la materia denominado plasma

Para que una corriente eléctrica circule por un cable o por un circuito eléctrico necesitamos una fuente de alimentación ( una pila eléctrica o un generador) conectada a los extremos.

Cómo fabricar una pila casera de pocos electrones.

Las pilas eléctricas están conectadas en paralelo si todos los polos del mismo signo están unidos entre si. De estos puntos comunes de unión sale el cable que lleva la corriente al circuito.

Colocar las pilas en serie supone colocar un polo en contacto con el contrario.

Light behaves in two ways: like a particle and like a wave. The way a photoelectric cell works shows the corpuscular behaviour of light.

Phosphorescence is the luminescence produced by a mineral during a more or less long period of time, after the source of exciting radiation has ceased.

Oil is the product of the decomposition of the remains of microscopic living organisms which millions of years ago inhabited the seas, lakes and river estuaries. Oil today has a multitude of applications. This is why is it essential not to waste it simply as fuel. The following visual shows how it is formed and how it is used.

Variaciones entre periodo y frecuencia

Relation between the magnitude frequency and the magnitude period