A woman runs as shown.
What main energy conversion occurs?
(1 point)
Responses
Thermal energy changes into mechanical energy because heat provides energy for motion.
Thermal energy changes into mechanical energy because heat provides energy for motion.
Mechanical energy changes into chemical energy as the kinetic energy from motion creates reactions in the surrounding air.
Mechanical energy changes into chemical energy as the kinetic energy from motion creates reactions in the surrounding air.
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
Mechanical energy changes into thermal energy because the energy from motion creates heat in the air around the runner.
Mechanical energy changes into thermal energy because the energy from motion creates heat in the air around the runner.
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
The correct main energy conversion that occurs when a woman runs is:
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
The correct answer is:
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.
To determine the main energy conversion that occurs when a woman runs, we need to understand the sources of energy involved. In this case, the energy comes from the digestion of food. Food contains potential energy in the form of chemical energy. The process of digestion converts this chemical energy into usable forms for the human body, such as ATP (adenosine triphosphate).
When the woman runs, the stored chemical energy in her body is converted into mechanical energy. This mechanical energy is responsible for the motion of her body, including the movement of her muscles and the propulsion of her legs.
Therefore, the correct answer is that chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner's motion.