Chloe is training for her first half-marathon, which requires her to run

Question

21.1 km. Before she runs, she carefully chooses the foods that will give
her the energy her body requires for the race. She stands still at the
starting line, then starts running, her body warming up as she runs.
Which energy transformations take place in this example?
Chemical Energy to Kinetic Energy
Chemical Energy to Thermal Energy
Mechanical Energy to Chemical Energy
Potential Energy to Kinetic Energy

Answer 1

In the scenario described, Chloe is consuming food for energy, which provides her body with chemical energy. As she starts running, this chemical energy is transformed into kinetic energy (the energy of motion) as she moves. Additionally, as her body works harder, some of this energy also converts into thermal energy, which is related to the heat generated by her muscles during exercise.

Given the options provided, the relevant energy transformation taking place in this example is:

• Chemical Energy to Kinetic Energy

Although some thermal energy is produced as well, it's not one of the choices provided. Therefore, the best answer is the transformation from chemical energy to kinetic energy.