EVERYDAY SCIENCE

Detailed explanation-1: -Which type of energy gets converted into kinetic energy, when we throw a ball? Potential energy is converted into kinetic energy when we throw a ball. The gravitational potential energy of the ball is converted into kinetic energy as it descends to the earth.

Detailed explanation-2: -When a ball is thrown, initially it has only kinetic energy. When it reaches a maximum height all the kinetic energy is converted into potential energy. Mid-way, the ball has equal potential and kinetic energy. When the ball just touches the ground it only has kinetic energy.

Detailed explanation-3: -When a ball is thrown upward, kinetic energy keeps on decreasing whereas potential energy keeps on increasing but the total energy of the ball will remain the same. The velocity is zero when the ball reaches maximum height. Hence no kinetic energy but only potential energy exist.

Detailed explanation-4: -As a ball is thrown up in the air, it has the lowest potential energy and highest kinetic energy when it starts since its height is minimum and velocity is maximum at that point. As the ball goes higher in the air, its velocity keeps on decreasing and becomes zero at the highest point in path.

Detailed explanation-5: -The white ball gains potential energy when it hits the other balls, and that always causes sound. The collision between the balls transfers light energy from the white ball to the other balls. Some of the kinetic energy from the white ball is transformed into sound energy when the balls collide.