When the boy was skating qhat is thermal energy doing
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When the boy was skating, kinetic energy was being converted from his potential energy into the energy of motion required for the skating movement. The kinetic energy of the boy was directly proportional to his speed and mass while he was moving on the skates.
The primary form of energy being used by the running boy is kinetic energy, which is the energy associated with movement. This energy is generated by the muscles in the boy's body as they work to move him forward.
The energy transformation that happens when a boy rides a bike is from chemical energy stored in the boy's body (from food) being converted to kinetic energy as the boy pedals the bike. This kinetic energy then propels the bike forward, overcoming friction and gravity.
The boy has potential energy as he jumps up on the diving board, and kinetic energy as he dives off and moves through the air.
The boy on the tricycle is converting chemical energy (from food consumed) into mechanical energy to pedal the tricycle. As the tricycle moves, friction between the wheels and the ground generates heat energy. Additionally, the boy's movement also produces sound energy.
At the top of the hill, the boy has high potential energy due to his elevated position. As he rides down, his potential energy decreases and his kinetic energy increases, reaching its maximum at the bottom of the hill. At the bottom, his potential energy is low, while his kinetic energy, which is the energy of motion, is highest.