A bar magnet is held in place while another bar magnet is placed near it. The second bar magnet spins around and attaches to the first magnet on one end. Which statement is correct about the energy stored in the magnetic field? (1 point)

Question

Responses

The increase in the energy stored in the system is proportional to the decrease in kinetic energy.
The increase in the energy stored in the system is proportional to the decrease in kinetic energy.

The decrease in the energy stored in the system is proportional to the decrease in kinetic energy.
The decrease in the energy stored in the system is proportional to the decrease in kinetic energy.

The increase in the energy stored in the system is proportional to the increase in kinetic energy.
The increase in the energy stored in the system is proportional to the increase in kinetic energy.

The decrease in the energy stored in the system is proportional to the increase in kinetic energy.
The decrease in the energy stored in the system is proportional to the increase in kinetic energy.

Answer 1

The correct statement is:

The increase in the energy stored in the system is proportional to the decrease in kinetic energy.

As the second bar magnet spins and comes to a stop (attaching to the first magnet), it loses kinetic energy as it converts that energy into potential energy stored in the magnetic field. Thus, there is an increase in the energy stored in the magnetic field and a proportional decrease in the kinetic energy of the system.