‘What are the laws of Physics governing the motion of a roller coaster? How are speed and acceleration related? How does the g-force change at different points along the track? Design and ride your very own realistic roller coaster, and see how quantities like speed, acceleration, energy and g-force change as you ride along the track.’
2- Circuit Playground
‘Circuit Playground simplifies electronics reference & calculation so you can have more fun hacking, making, & building your projects.’
3- BridgeBasher
‘Design a bridge and then destroy it. Powered by a sophisticated physics engine, BridgeBasher realistically simulates your bridge reacting to destructive forces in real-time.’
4- SpeedClock
‘A unique, advanced app designed to easily measure the speed of cars, boats, skaters, skiers, cyclists, animals, models, footballs, tennis serves, etc. The system is based on motion detection, enabling you to track a moving object using a hand-held device alone. SpeedClock includes three separate speed measurement tools and two distance estimation tools.’