Magnetic levitation trains ensure quality travel experiences as they are extremely quiet (60~65 dB), have very low vibration levels and moves at an average speed of 250 km/hour. In addition, they rarely have frictional wear, making it cheaper to maintain and repair the trains. There is also no risk of derailment since the magnetic system covers the rail. Finally, load is distributed evenly throughout the train, thereby reducing the construction cost of the rail structure. On the other hand, the energy efficiency of magnetic levitation trains is slightly lower than a traditional wheel-operated train.
Science Learning Objectives:
- Recognise that a magnet can exert a push or a pull.
- Identify the characteristics of magnets.
- List some uses of magnets in everyday objects.