Using cookie tins and metal washers, explore how the mass distribution inside a cylinder affects its speed rolling down a ramp.
Planet Impact This online exploration makes otherwise dry physics come colorfully and dramatically alive. It investigates how gravitational forces of larger bodies can affect the path of a smaller body. In this interactive activity you can use changing speed, mass and angle to crash your own
Fear of Physics Your objective is to launch your satellite with the correct speed and to the correct height to achieve orbit. Too slow or too low and you crash! If you go too fast or high, you may lose your satellite into space! This interactive animation is easy to understand and use. Fear of