Final answer:
When diving and swimming in a pool, potential energy is converted to kinetic energy and then to mechanical work, with chemical energy from food aiding in swimming. While sitting by the poolside, sunlight's heat energy is absorbed, raising body temperature. Pools have higher heat capacity than wading pools, affecting how they absorb heat.
Step-by-step explanation:
When you dive into a swimming pool and swim laps, you are involved in various forms of energy transformation. Initially, standing by the pool, you have potential energy due to your height above the water. As you dive in, this is converted to kinetic energy as you move towards the water. Swimming laps requires the conversion of chemical energy from the food you eat into mechanical work, propelling your body through the water. This work against water resistance eventually dissipates as heat into the pool. When you sit by the poolside in direct sunlight, the sun's energy is absorbed, increasing your body temperature.
Specifically, heat capacity and specific heat are concepts that describe how much heat energy is required to raise the temperature of a substance. Such as, the swimming pool has a higher heat capacity compared to a wading pool, meaning it will take more heat to increase its temperature. When you are out of the pool and exposed to sunlight, the heat energy absorbed is influenced by factors such as the body surface area exposed to the sun and the intensity of the sunlight - approximately 1.0 kW/m².