Why do balls dropped from different heights produce different levels of sound?
Suppose we have 2 balls of same size. One we will drop from medium height. It reaches the ground with a sound. Now we drop another ball from higher height. It will also reach ground ( ! ) , but with a louder sound compared to previous one.
Before dropping the balls, they were in rest position. That time , they have potential energy. The level of energy changes compared to the height at which they are.
Balls release their potential energy as sound energy. Ball which is at a height lower to other ball has less potential energy compared to the ball at higher level. Hence, when this ball is dropped it produces a sound which is not as loud as the other ball at more height.
Thats why, in hydro electric power stations, collected water is made to fall from greater height . So that its newly converted kinetic energy has more force to turn turbine.
Suppose we have 2 balls of same size. One we will drop from medium height. It reaches the ground with a sound. Now we drop another ball from higher height. It will also reach ground ( ! ) , but with a louder sound compared to previous one.
Before dropping the balls, they were in rest position. That time , they have potential energy. The level of energy changes compared to the height at which they are.
Balls release their potential energy as sound energy. Ball which is at a height lower to other ball has less potential energy compared to the ball at higher level. Hence, when this ball is dropped it produces a sound which is not as loud as the other ball at more height.
Thats why, in hydro electric power stations, collected water is made to fall from greater height . So that its newly converted kinetic energy has more force to turn turbine.
