The examples where using conservation of energy to solve a problem is easier than other methods are:
1. Pendulum
2. Nuclear Power Plant
The principle of the conservation of energy says that:
Energy within an isolated system is neither created nor destroyed, it simply changes from one type of energy to another.
1. Pendulum:
As the pendulum swings down:
gravitational potential energy of the pendulum →kinetic energy of the pendulum.
As the pendulum swings up: kinetic energy of the pendulum→ gravitational potential energy of the pendulum.
2. Nuclear Power Plant:
Nuclear energy (from the decay of uranium) → thermal energy of water
→kinetic energy of a turbine →electrical energy + thermal energy (from friction in the turbine and transmission lines)
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