What main energy conversion occurs?

(1 point)
Responses

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.

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.
Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.

Thermal energy changes into mechanical energy because heat provides energy for motion.

1 answer

The correct response describing the main energy conversion that occurs in the context provided is:

Chemical energy changes into mechanical energy because energy from digestion of food provides energy for the runner’s motion.

This highlights the conversion of the stored energy in food (chemical energy) into the energy used for movement (mechanical energy) in a runner.