Potential energy due to gravity
Potential energy due to gravity Lifting heavy objects increases the potential energy of the object. The amount of work done when lifting an object of mass m by height h can be…
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Science simulations
Stratum Making
About this simulation, When you press the button, you can see the corresponding strata. Combining the layer, you can create variety stratum. This simulation is presented as a mathematical model. Actual strata…
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Correction of Near-sightedness & Far-sightedness
Focusing To see things detaily, the light from one point of the object must be gathered exactly at one point on the retina. On the other hand, if the light from one…
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Minimal force required for the lever
Lever A lever is a tool that transmits force using a rod. With a lever, you can work with relatively little force. The minimum force required to move the lever can be…
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‘Work’ in science
‘Work’ in science ‘Work’ in science and ‘work’ in everyday life are a little different. In science, ‘work’ is to apply a force to an object and move it in the direction…
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Iris and ciliary body
Iris muscles In the iris, there are the ‘Iris sphincter muscle’ that constricts the pupil and the ‘Iris dilator muscle’ that enlarges the pupil. Both muscles work in reverse, controlling the size…
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Phase of the Moon 2
It is only the sun that shines by itself in the solar system. Earth and moon do not emit light themselves. The earth and the moon only reflect the light of the…
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Homopolar Motor
The current flowing in the wire is in the X direction and the magnetic field is in the Y direction. In what direction is the electromagnetic force? ‘Homopolar motor’ refers to a…
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Lorentzs Force (Electromagnetic swing)
Direction of the Lorentz force Conductors in which current flows in a magnetic field, are forced to move. The direction of this force is perpendicular to the current and the magnetic field…
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DNA electrophoresis
This simulation assumes that the loading dye is 50bp and the marker is 50bp. (‘bp’ is a unit showing the number of base pairs of DNA.) Electrophoresis Electrophoresis is a chemical phenomenon…
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