Structure of ammeter
Ammeter The strength of the current in the electrical circuit is measured using an ammeter. There is a rotor with a coil wound inside the ammeter. When the current flows through the…
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Science simulation
Electric Current, Conductor, Insulator
Electric voltage(Regions of positive or negative charge, such as those at the terminals of a battery) force electrons through a conductor. Electrons that have negative charge can be moved around a circuit.…
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Rutherford Scattering and Size of Nucleus
Discovery of nuclear At the beginning of the 20th century there was little known about the structure of atoms except that they contained electrons. At that time, the atom was known as…
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Temperature and Reaction Rate
Heat and molecular motion Every object is made up of atoms or molecules that are small particles that can not be seen by the eye. These particles are constantly move or oscillate…
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Area of Lung
Respiratory organ To maintain life, we absorb oxygen from the air. And we export carbon dioxide from the body. Human respiratory organs include nose, organs, bronchi, lungs. Each bronchus in the lung…
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Pascal’s Principle
Pascal’s Principle The Pascal’s principle is as follows. “Suppose a closed tube filled with uncompressed fluid. Then, the pressure of this tube’s inside is the same everywhere.” For example, If you press…
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Potentiometer
Potentiometer The potentiometer is an electronic component that allows you to adjust the resistance value freely. The potentiometer is used to adjust the volume of sound in audio equipment and so on.…
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Projectile Motion
Projectile Motion When you throw an object, the object falls down with a certain curve. The object performs a parabolic motion. This is a motion on a two-dimensional plane, not a straight…
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Refraction on water
Refraction is the bending of a wave caused by a change in its speed as it moves from one medium to another. This occurs because of the slow speed of light in…
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Spectrum of Hydrogen Atom
Spectrum of hydrogen At the time of Rutherford ‘s experiments, chemists analyzed chemical components using spectroscopy, and physicists tried to find what kind of order in complex spectral lines. For example, a…
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