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Video Física
"All objects with mass attract and are attracted by all other objects with mass because of a force called gravity. The strength of gravity is proportional to the mass of the object. We are pulled to t ...
"Sustainable development is the usage of natural resources for human needs in a way that preserves the environment that produces those resources so they can be used in the future. Scientists argue tha ...
Video Física
"Gravitational fields are vector fields that show forces of gravity around a large object. A gravitational field pulls all surrounding objects towards the center of mass but pulls the matter at the ce ...
Video Física
"The two most commonly used graphs of motion are velocity (distance v. time) and acceleration (velocity v. time). In each case, time is shown on the x-axis. The graph of velocity is a curve while the ...
"The strength of acids and bases depend on how much an acid or base ionizes in solution. A strong acid or base completely ionizes in solution. In a neutralization reaction, an acid and  a base react ...
Video Química
"Stoichiometry is the study of measuring or predicting the amount of reactants or products in a chemical reaction based on the variables such as the mass of reactants or products, the limiting reactan ...
Video Física
"States of matter are the different phases which matters can take - gas, liquid and solid. Gas has no fixed shape and conforms to the volume of its container. A liquid has a distinct volume but assume ...
Video Física
"Standing waves, also known as stationary waves, are waves formed by the combination of two waves with equal amplitudes and frequencies. Because of the interference between these waves, standing waves ...
Video Física
"The standing sound waves are known as harmonics that involved sound. Standing sound waves associate with the boundary conditions at the boundaries of the medium. When the traveling wave is reflected ...
Video Química
"Graham’s Law states that the rate of effusion for a gas is inversely proportional to the square root of its molar mass. " Fuente: BrightStormGraham's Law es un contenido didáctico (en inglés) de ©Bri ...
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