Question

After Pedro had breakfast, he went for a run. Identify at least three energy transformations that had to take place to allow Pedro to complete his run. Then use evidence to support the claim that energy in this system was conserved as it was transformed.

Body temp while eating = 37*c After Running = 40*c

Answer 1

1) Chemical to Mechanical Conversion (calories to muscle contractions)

2) (muscle into motion) Mechanical to Mechanical

3) Mechanical to Thermal (motion induces perspiration because the body heats up).

Chemically, potential energy is stored in the body, potential energy is created by food. When the body is moving, the stored potential energy is released.