is a firecracker exploding great example of potential energy or can I describe a better example
A firecracker exploding is not an example of potential energy. Potential energy refers to the stored energy an object has due to its position or condition. In the case of a firecracker, it primarily involves chemical potential energy, which is converted into other forms of energy, such as kinetic energy, heat, light, and sound, during the explosion.
If you're looking for a better example of potential energy, a common one is a stretched rubber band. When a rubber band is stretched, it possesses potential energy due to the elastic potential energy stored within its molecular structure. This potential energy can be converted into kinetic energy when released, causing the rubber band to snap back to its original shape.
Another example of potential energy is a ball held up in the air. The ball possesses gravitational potential energy, which is determined by its height and mass. The higher the ball is lifted, the greater its potential energy. When the ball is released, the potential energy is converted into kinetic energy as it falls downwards.
To summarize, while a firecracker is not a good example of potential energy, a stretched rubber band and a ball held up in the air are both appropriate examples.