Unit 3 Pre-Assessment: Magnetic Fields

Front

What is potential energy in the context of magnetic fields?

Back

Potential energy in magnetic fields refers to the energy stored in a system due to the position of magnets relative to each other. It increases when magnets are moved against the magnetic force and decreases when moved in the same direction as the magnetic force.

Front

What happens to potential energy when a magnet is moved away from another magnet?

Back

The potential energy increases because the magnet is moving against the magnetic force.

Front

What are the magnetic poles represented by the letters N and S?

Back

The letters N and S represent the North and South poles of a magnet, respectively. Opposite poles attract each other, while like poles repel each other.

Front

What occurs when two magnets are placed close to each other?

Back

If the magnets have opposite poles facing each other, they will attract and move closer. If they have like poles facing each other, they will repel and move away from each other.

Front

How does distance affect the potential energy between two magnets?

Back

As the distance between two magnets increases, the potential energy increases if one magnet is moved away from the other against the magnetic force.

Front

What is the effect of moving a magnet toward another stationary magnet?

Back

Moving a magnet toward another stationary magnet increases the potential energy because it is moving against the magnetic force.

Front

What is the relationship between magnetic force and potential energy?

Back

The magnetic force determines how potential energy changes in a system of magnets. Moving against the force increases potential energy, while moving with the force decreases it.

Front

What happens to potential energy when a magnetic object is moved in the same direction as the magnetic force?

Back

The potential energy decreases because the object is moving in the direction of the magnetic force.

Front

What is the principle of magnetic repulsion?

Back

Magnetic repulsion occurs when two like poles (N-N or S-S) are brought close together, causing them to push away from each other.

Front

What is the principle of magnetic attraction?

Back

Magnetic attraction occurs when opposite poles (N-S) are brought close together, causing them to pull towards each other.