Constant Velocity
Constant motion Constant velocity motion refers to motion with constant velocity. When a force is applied to an object, the object’s velocity changes, so the sum of all the forces applied to the object in uniform … more
Binary Counting
Binary Binary is a method of representing numbers using only two numbers, 0 and 1. In the case of the decimal system, rounding occurs when 9 is added to 1. In the binary system, adding 1 … more
Avogadro’s Law
Avogadro’s Law The Italian scientist Avogadro (1776-1856) introduced the molecules’ concept to explain gases’ reactions. According to his theory, the volume of any gas at the same temperature and pressure is proportional to the molecules’ number. … more
Bohr’s Atomic Model
The discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode ray tube to explain … more
Addition Polymerization
Addition Polymerization It is a reaction that forms a polymer compound while a double bond of a monomer forms a new single bond. When the monomers are bonded, no other small molecules are produced other than … more
Slingshot Effect
Slingshot effect Suppose you throw an elastic ball to a moving train. And since the train’s mass is huge, let’s assume that the ball’s mass is negligible compared to the mass of the train. At this … more
Gravity Assist
Run Gravity Assisted Navigation-How to increase the speed of a spacecraft using the moon’s gravity A method of increasing speed using the celestial body’s gravity as the spacecraft moves around a moving object is called ‘Gravity … more
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