Which would be the best example to demonstrate the principle of conservation of energy?
a stone is crushed
light bends around a sharp edge
a pendulum swings back and forth
a balloon inflates when air is blown into it
1 answer
The best example to demonstrate the principle of conservation of energy would be a pendulum swinging back and forth. In a pendulum, the potential energy is converted into kinetic energy as it swings downwards, and this kinetic energy is then converted back into potential energy as it swings upwards. Throughout its motion, the total amount of energy remains constant, illustrating the principle of conservation of energy.