The Physics of Fun
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Motions & Forces: Laws of Physics in Action
Have you ever wondered why rollercoaster cars don't have engines? Vehicles don't always need that kind of power to make them go. But they do need energy of some sort. Before a rollercoaster ride begins, an electric winch winds the cars to the top of the first hill. That can take a while, because some rollercoasters start off nearly 100m (330ft) in the air!
Energy (motion) and Forces change during a rollercoaster ride. The rollercoaster cars store energy just by being up in the air—and the higher up they are, the more energy they store. They'll use the same energy to race back down the hill when the ride begins. Because they have the ability (or potential) to use in the future energy that was stored in the past, we call the energy they're storing potential energy. The further they go down the hill (helped by gravitational forces), the faster they go, and the more of their original potential energy is converted into kinetic energy. Centripetal force is another major force that make things go around in a circle during the upside down loops. For the full article, click here.
Understanding how motion and forces work together is a fundamental part of beginning physics. All engineers, architects, and pilots require a solid grasp of the science of physics. Join IQuest Summer Camp for our fun science camps: 'Up, Up and Away: Science in Motion' on week July 10-14, 9am-12pm; 'May the FORCE be with You' on July 10-14, 1pm-4pm. Limited seats only and register now!
More Forces & Motion Fun: Stringless Yo-Yo in Action!
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