a woman run. What main energy conversion occurs?
Thermal energy changes into mechanical energy because heat provides energy for motion.
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
Mechanical energy changes into chemical energy as the kinetic energy from motion creates reactions in the surrounding air.
Mechanical energy changes into thermal energy because the energy from motion creates heat in the air around the runner.
3 answers
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner's motion.
how?
When the woman runs, her muscles require energy to contract and move her body. This energy comes from the chemical energy stored in the food she has consumed and digested. Through a process called cellular respiration, this chemical energy is converted into a usable form of energy called adenosine triphosphate (ATP). ATP is then used by the muscles to produce mechanical energy, resulting in the motion of the runner. Therefore, the main energy conversion that occurs in this scenario is from chemical energy (from food) to mechanical energy (motion).