Question

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. 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. 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.

Answer 1

The correct response is: Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.

This statement accurately reflects the primary energy conversion that occurs when a person runs, as the body converts chemical energy stored in food into mechanical energy used for movement.