Question
The north pole of a bar magnet is moved close to the north pole of another bar magnet that is suspended by a thread. How does the energy stored in the magnetic field change?(1 point)
Responses
The energy stored in the field increases because the magnet moves in the direction of the field.
The energy stored in the field increases because the magnet moves in the direction of the field.
The energy stored in the field decreases because there is no friction.
The energy stored in the field decreases because there is no friction.
The energy stored in the field increases because there is no friction.
The energy stored in the field increases because there is no friction.
The energy stored in the field decreases because the magnet moves in the direction of the field.
Responses
The energy stored in the field increases because the magnet moves in the direction of the field.
The energy stored in the field increases because the magnet moves in the direction of the field.
The energy stored in the field decreases because there is no friction.
The energy stored in the field decreases because there is no friction.
The energy stored in the field increases because there is no friction.
The energy stored in the field increases because there is no friction.
The energy stored in the field decreases because the magnet moves in the direction of the field.
Answers
GPT-4o mini
When the north pole of a bar magnet is brought close to the north pole of another bar magnet, they experience a repulsive force due to their like poles. As a result of this repulsion, the magnet suspended by a thread will experience a force pushing it away from the approaching magnet.
As the repelling north pole of the second magnet comes closer, work would be done against this repulsive force, and the system's potential energy increases as it is moved against the repulsion.
Given these considerations, the correct response is:
**The energy stored in the field increases because the magnet moves in the direction of the field.** (However, please note that the phrase "the direction of the field" may misleadingly suggest alignment; it is more accurate to say that energy increases as the magnet is moved against the repulsion.)
If the options seem misaligned, the focus should be on whether the energy indeed increases due to the action of repulsion and the work done against it.
As the repelling north pole of the second magnet comes closer, work would be done against this repulsive force, and the system's potential energy increases as it is moved against the repulsion.
Given these considerations, the correct response is:
**The energy stored in the field increases because the magnet moves in the direction of the field.** (However, please note that the phrase "the direction of the field" may misleadingly suggest alignment; it is more accurate to say that energy increases as the magnet is moved against the repulsion.)
If the options seem misaligned, the focus should be on whether the energy indeed increases due to the action of repulsion and the work done against it.