A bouncy rubber ball is dropped from a height of about a metre above the ground .it falls to the ground, bounces and then rises back to almost the height from which it was dropped. Describe the main energy transformations that take place from the point at which the ball first touches the ground until the point it leaves the ground again.
answer
Gravitational potential energy is converted into kinetic energy and then into sound energy or (strain ,interna energy)
is that correct answer ,help plz
no. The question asked what happened to the energy as it hit the ground and slowed then moved up. Remember hooke's law?
I think kinetic energy is converted into gravitational potential then into strain energy .how about this is it correct plz help
Yes, your answer is partly correct. Let's break down the main energy transformations that take place when a bouncy rubber ball is dropped and then bounces back up:
1. Gravitational Potential Energy: As the ball is held at a height above the ground, it possesses gravitational potential energy due to its position relative to the Earth's surface.
2. Kinetic Energy: When the ball is released, it starts to fall towards the ground under the influence of gravity. As it falls, the gravitational potential energy is converted into kinetic energy, which is the energy of motion.
3. Elastic Potential Energy: When the ball hits the ground, it compresses due to the impact. This compression leads to an elastic force being exerted on the ball, and this force stores potential energy in the material of the ball. This potential energy is known as elastic potential energy.
4. Kinetic Energy (Rebound): The elastic potential energy is then converted back into kinetic energy as the ball rebounds off the ground. The stored potential energy is released, causing the ball to spring back up.
5. Sound Energy: When the ball hits the ground and rebounds, some of the energy is transferred into sound energy. This is due to the vibrations and the impact between the ball and the ground surface.
6. Internal Energy: During the impact and rebound, some heat energy is generated within the ball due to internal friction and deformation. This energy is known as internal energy.
So, to summarize, the energy transformations are mainly gravitational potential energy to kinetic energy, kinetic energy to elastic potential energy, elastic potential energy to kinetic energy (rebound), and some energy converted into sound energy and internal energy.