A woman runs as shown.

Question

What main energy conversion occurs?

(1 point)
Responses

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.
Thermal energy changes into mechanical energy because heat provides energy for 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.
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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 option accurately describes the process by which the body converts the chemical energy stored in food into mechanical energy, which enables the runner to move.