It is recommended that teachers should view any video before purchase.
The study of martial arts is the study of physics as it relates to the human body. The various types of martial art evolved as different approaches to the same problem - what is the most effective way of using the body to defend and attack? We shouldn't be surprised to find that the most effective methods of blocking and striking, perfected over hundreds of years, use the laws of physics to maximum effect
A sophisticated applet simulating traffic through a series of controlled intersections. You can set the period of each colour of the traffic lights, the delay time between the lights at adjacent intersections as well as the maximum speed and acceleration of the cars.
The Moving Man: Using a mouse, the student drags a stick figure back and forth across the top of the screen between its home and its school. Below, graphs of the motion appear as the motion progresses. Detailed instructions.
A short text-based explanation.
A US Public Broadcasting System (PBS) website on Galileo. It features articles as well as interactives on 'falling objects;, 'projectiles', inclined planes' and 'pendulums'. Excellent ball dropped from moving horse sequence(late in program: 1h35m)
Interactive Applets for Video: Galileo-Battle for the heavens.
A file of speed records compiled by the International Human Powered Vehicle Association (IHPVA) covering all manner of configurations on land, on and under water and in air.
An extensive list of links on Road safety both for Australia and from around the world prepared by Vehicle Design and Research Pty Ltd.
Another extensive list of links on road safety prepared by the Vehicle Design and Research Pty Ltd.
Comprehensive report on safety aspects prepared by Vehicle Design and Research Pty Ltd.
Extensive description and analysis, includes animation.
A study by the University of Adelaide, it contains: A literature review, An examination of general crash data, A detailed examination of fatal car crashes and At scene investigation of road crashes .
The Public Broadcasting System (PBS) (US) website is an accessible, but comprehensive description of passive safety strategies. It includes a Teacher guide.
This Java applet shows a car moving with constant acceleration. The green control panel contains text fields where you can vary the values of initial position, initital velocity and acceleration. By using the buttons at the top right you can bring back the car to its initial position or stop and resume the simulation. If you choose the option "Slow motion", the movement will be ten times slower. Three digital clocks indicate the time elapsed since the start. As soon as the car has reached the green respectively red light barrier with its front bumper, the corresponding clock will stop. Both light barriers are adjustable by dragging the mouse with pressed mouse button. Three diagrams illustrate the motion of the vehicle, x, v and a vs t.
An applet by Walter Fendt. A point has three masses attached by cords. One hangs vertically, the other two hang over pulleys. The weight force in Newtons on each can be adjusted. The diagram adjusts automatically to reflect the new situation, and the angles between the forces are also given.
The applet by Walter Fendt shows the process of adding the forces, one by one, and displays the resultant vector. You can select from 2 to 5 forces and each of the forces can be altered in size and direction.
An applet by Walter Fendt. A mass is pulled up an inclined plane. The angle of the plane, the mass of the object and the value of the coefficient of friction can be adjusted. The parallel and normal components of the weight force, the size of the friction force and the required force to make the object move are shown. After you select “Start” the mass moves up the plane with all the force vectors displayed.
The applet by Walter Fendt simulates an air track set up. A glider is pulled along by a mass hanging over the end. The masses of the glider and the hanging mass can be adjusted. The coefficient of friction can also be varied. After you select “Start” the combined mass system begins to move. At the same time a point moves along a Disp – Time graph. A Light beam can be placed anywhere along the glider path. When the glider cuts the beam, the time and displacement are measured. A permanent dot is placed on the graph, and the data can be saved, and added to earlier measurements with the light beam in different positions. The effect of the size of the falling mass on the acceleration can also be investigated, as well as the effect of friction.
An Applet by Walter Fendt. The display features an oscillating pendulum, but you can choose to show either of the following graphs against time: displacement, velocity, tangential acceleration, net tangential force and energies, GPE and KE. The graphs have a dot moving along them in time with the oscillation. In addition as the pendulum oscillates there is a vector representing the selected quantity on the mass. The force diagram shows the weight, tension and net tangential force. You are able to vary the length, mass and amplitude. There is also a slow motion option. Note: the applet does not use the phrase “tangential force”, just “Force”, whose value goes to zero at the mid point, with the weight force and tension being equal and opposite. The applet would be useful in Year 11 in illustrating the relationships between vel, accel’n and net force, and GPE and KE.