Question

Eddie and Val observed the picture of an athlete running in a race.

A large group of runners participate in a race.

Eddie stated the picture shows potential energy being transformed to kinetic energy. Val stated that it shows chemical energy being transformed to mechanical energy. Which best explains who is correct?

Only Eddie is correct because the picture does not show a transformation that starts with chemical energy.
Only Eddie is correct because the picture does not show a transformation that ends with mechanical energy.
Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.
Both Eddie and Val are correct because chemical energy is a type of kinetic energy and mechanical energy includes potential energy.

Answer 1

Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.

The runners convert stored chemical (potential) energy in their muscles into mechanical energy of motion (kinetic).