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Car Braking 
Newton Law 
Man in lift 
Phase Diff 


Experiment Simulations For Interactive Physics Software

The following experiment simulation have been developed for O-level, A-level and IB Physics teaching. Please click the link to view the demo movie clips or the "BUY IT" to purchase it online.


Bombing Simulation

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User controls the dropping of a bomb from a World War 2 bomber. Bomber's horizontal velocity and the position of the target can be varied before running the simulation. This simulation aims to help student grasp the concept of independent vertical and horizontal motion of an object in a projectile.



Concept of Moments

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Pushing a wheel up a step

A problem on moment (turning effect of a force) is presented. Students have to find out the minimum force required to push a heavy wheel up a step by using the concept of moments. The students can also try out the different turning effect produced by the same force applied at different positions and directions on the wheel.




Car Braking Simulation

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Braking of a moving car

User controls when to stop a moving car by applying the brake. Variables such as the original velocity of the car and the coefficient of friction between the tyres and road can be varied. Students will find it easier to understand how the stopping distance depends on these factors.




Magnetic Field Simulation

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A charged particle moving in a magnetic field

User shoots a charged particle into a region of magnetic field and observes how its motion is affected. Variables such as magnetic field strength and direction, velocity (both magnitude and direction), quantity of charge carried by the particle can be varied to help students see how they affect the motion of the charged particle in the magnetic field.




Newton's Second Law

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Explore Newton's Second Law

A trolley's motion is being explored in this model. User can vary the size of the force acting on the trolley. The mass of the trolley can be changed by stacking weights on it. Students can investigate how these two factors (force and mass) affect the motion of the trolley.




Projectile - Upward

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Projectile - object thrown upward 

It is a common misconception that when an object is thrown vertically up from a moving train, the object will land behind the train. In this simulation, students can explore this by throwing an object vertically up from a moving trolley. They can see that how the object moves and where it lands depend on the velocity of the trolley, the force with which they throw the object and the amount of air resistance present.



Man in a lift

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Man in a lift
In this simulation model, the user can control the acceleration of a lift and observe what will happen to the man and its apparent weight when the acceleration is upward, zero, or downward. If the acceleration is set to be more than 9.8 ms^2 downward, the man will lose contact with the floor of the lift and he is free falling.



Simple Harmonic Motion - Horizontal Spring

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Oscillation of a mass attached to a horizontal spring
(Simple Harmonic Motion

 A mass attached to a horizontal spring can be set into oscillation by extending or stretching through a small displacement. Graphs of the mass's displacement, acceleration, kinetic energy and potential energy are displayed in real time. User can vary the force constant of the spring and damping factor to see how they affect the oscillation of the mass.



Simple Harmonic Motion - Phase Difference

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Simple Harmonic Motion - Phase difference
Two identical mass-spring systems can be set into oscillation. One of the systems can start its oscillation at a later time, which is decided by the user, who can then observe the phase difference between the two systems by studying the displacement-time graphs which are shown in real-time.



Forced Oscillation and Resonance

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This simulation model demonstrates forced oscillation and resonance. The user can adjust the frequency of a driving source which is driving a mass-spring system into oscillation, and then observe how the amplitude of the driven oscillator varies with the drive frequency. Resonance occurs when the drive frequency matches the natural frequency of the mass-spring system. The phase relationship between the driving and driven oscillators can also be seen in the displayed graphs.



Man on vibrating table

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Man on vibrating table
In this model, a man is standing on a vibrating table. User can explore how the factors like the amplitude and frequency of the vibration will affect how the reaction force from the table on the man changes and determine the conditions for the man to remain in contact with the table (i.e. not thrown into the air.) all the time.



Transverse Traveling Wave

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Transverse Traveling Wave
This simulation model demonstrates a transverse travelling wave. The user can vary the wavelength, amplitude and wavelength of the wave. The model clearly shows the motion of each medium particle as the wave passes.


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