* Potential Energy: When a ball is held above the ground, it has potential energy due to its position. The higher the ball, the more potential energy it has.
* Conservation of Energy: As the ball falls, its potential energy is converted into kinetic energy (the energy of motion).
* Relationship: The amount of kinetic energy the ball has right before impact is equal to the amount of potential energy it had at the start.
In summary: Since the ball dropped from 4m has more potential energy initially, it will have more kinetic energy just before hitting the ground.
