Scale of Atom
Each click on the screen increases or decreases by 10 times. The structure of the atom The matter is composed of atoms such as hydrogen, carbon, nitrogen, and oxygen, and the size of the atom is … more
Vapor Pressure Lowering
Equal volumes of sugar water and distilled water is in the same cup. Which solution will evaporate faster? Vapor pressure lowering of the solution When sugar (non-volatile solute) dissolves in water, a strong attraction acts between … more
Motion Analysis (with Webcam)
How to use Click on the object (usually a ball) to track on the screen. The position of the object is tracked and displayed on the screen at regular intervals. You can adjust the number of … more
Pop the Balloon (with Webcam)
How to play Click on the object (usually a ball) to track on the screen. Move the object to pop the START balloon to begin the game. Pop the balloon by moving the object. Please refer … more
CMYK Decomposer (with Webcam)
The image on the camera is divided into 4 color colors for printing. Notice & Information The following web browsers are currently supported: Windows: Microsoft Edge, Google Chrome Android: Microsoft Edge, Google Chrome iOS: Safari Please … more
Separation of Steel and Aluminum
How can you classify iron and aluminum? Iron cans stick well to the magnet. However, aluminum cans do not stick well to magnets. If the conveyor belt’s last wheel is a magnet, the iron cans are … more
Inductor and Capacitor 3
High frequency alternating currents are difficult to pass through the inductor. An inductor is a part made by winding a wire. In the case of direct current, the inductor only works as a lead. When an … more
Inductor and Capacitor 2
High frequency alternating currents are difficult to pass through the inductor. An inductor is a part made by winding a wire. In the case of direct current, the inductor only works as a lead. When an … more
Inductor and Capacitor
Why does the current gradually increase in an inductor? As current starts to flows through the inductor, a magnetic field is created around the inductor. This magnetic field’s change generates an electromotive force. Due to the … more
Kinetic Energy and Stopping Distance
Kinetic energy All moving objects have kinetic energy. The kinetic energy Ek of an object with a mass of ‘m’ and a velocity of ‘v’ can be calculated as follows. \[E_{ k }=\frac { 1 }{ … more
Ion Exchange Resin
Magic to turn hard water into soft water Soap does not dissolve well in hard water. On the other hand, soap is well solved in soft water. This is because hard water contains calcium ions(Ca2+) or … more
Half Life Period of a Radioactive Substance
Radioactive decay The radioactive material can collapse its own nucleus structure. At the same time, the nucleus emits some small particles or energy to the outside. The emitted particles and radioactive energy can cause damage to … more