Javalab Free interactive science simulation website for school. Simulates various natural phenomena Includes Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… Based on HTML5 Available on mobile devices and tablets also No more…
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The sensing part is slightly different depending on the frequency of sound. Move the slide bar to check. Cochlear Inside our ears, there is a sensory organ that senses sound. The overall…
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You can drag the screen to rotate it. temperate cyclone (also known as Extra-tropical cyclone) The temperate zone is where the cold air mass in the north meets the warm air mass…
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The air conditioner Air conditioner work by using ‘evaporative heat'(a phenomenon that absorbs the surrounding heat when the liquid evaporates). The indoor unit suddenly expands the compressed refrigerant through a narrow hole.…
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Altitude-temperature data is based on ISA(International Standard Atmosphere). Values other than the data were obtained using spline interpolation. Altitude(km) Air Temperature(℃) 0 15 4 -11 8 -37 12 -56.5 20 -56.5 30…
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Formation and energy of the ionic bonds Metal atoms have strong properties to lose electrons and become cations. On the contrary, non-metallic atoms have strong properties to obtain electrons and become anions.…
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Law of Definite Proportions In a reaction where hydrogen gas is burned to produce water, two hydrogen atoms combine with one oxygen atom. That is, hydrogen gas and oxygen gas always react…
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What is Covalent Bond? Covalent bond is a bond formed by atoms, each of atom creates an electron pair and shares it. Because each other’s electrons are shared in pairs, the number…
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If you fill the Coriolis effect 100%, the actual wind on the surface of Earth will appear. High atmospheric pressure and low atmospheric pressure The cause of wind blowing is the difference…
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Sea and Land Breeze Sea and Land Breeze is a wind that changes its wind direction every day in coastal areas. During the day, a sea breeze blows from the sea to…
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In a potential energy measurement experiment, why should an object be lifted slowly at a constant velocity? Lifting a stationary object causes a ‘some’ change in the object’s motion. You need force…
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This simulation ignored the effects of friction. Simple harmonic oscillation In everyday life, we see a lot of the movements that repeated same oscillation. Like below, shaky or suspended objects are doing…
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Radiation Places near the stove feel warmer than places far away. This is due to the direct transfer of heat from the stove without the movement of matter. This direct transfer…
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