# Science simulations

## What is JavaLab?

Free interactive science simulation written by JavaScript Simulates various natural phenomena Includes about Physics, Chemistry, Earth, Astronomy, Biology, Measurment, Mathmatics… No need to plugin add-ons Available on mobile devices and tablets also…

## Parabolic motion (Hunter and the Monkey simulation)

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…

## Photoelectric Effect Experiment

Photoelectric Effect The photoelectric effect is a phenomenon where electrons pop out when a light beam is incident on a metal surface. Simply think, the energy of light is transformed into the…

## Photoelectric Effect

Photoelectric Effect The photoelectric effect is a phenomenon where electrons pop out when a light beam is incident on a metal surface. Simply think, the energy of light is transformed into the…

## Javalab server maintenance notice

Thank you for using Javalab. Server maintenance work will proceed as follows. East Asia(Korea) JAN 23(SAT) 00:00~03:00 Southeast Asia JAN 22(FRI) 21:00~24:00 Middle East JAN 22(FRI) 17:00~20:00 Europe JAN 22(FRI) 15:00~18:00 America…

## Conical pendulum

3 forces acting on a conical pendulum Gravity(=mg): The force the Earth pulls. Tension: The force applied to both ends of the thread. Tension is always directed to the center from both…

## Force to move the pendulum

Tension by gravity In physics, tension is the force on a string connecting two objects. Generally, the tension is calculated from both ends toward the center.길이 $$l$$인 진자를 Let’s consider…

## Moment of Inertia (3D)

● It’s a tube. The radius of the tube is outside: inside = 0.75: 1. There is no rolling friction. ● It’s a tube. The radius of the tube is outside: inside…

## Connection of springs

You can hang multiple springs by touching (or clicking) the screen. What’s the difference when connecting multiple springs in series or parallel? (Notice) All springs and weights each have the same properties…

## Sound Analysis

What is the main frequency of the sound around us? Please allow the simulation to request microphone access. If you have set up the microphone or refreshed the webpage screen, just touch…

## Plants Respiration

Plants Respiration Animals carry out active breathing movements to obtain the energy they need for life activities. Through this breathing movement, oxygen is absorbed and carbon dioxide is released. Like animals, plants…

## Transistor application circuit

The above simulation is based on a circuit that actually works. The transistor uses C1815(general-purpose NPN switching transistor). The resistance connected to the base is 100kΩ, and the resistance connected to the…

## Structure of an 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…