Amplify Magnetic Fields Unit Test

Front

What happens when two magnets are brought close together?

Back

The magnets can either attract or repel each other depending on their poles. Opposite poles attract, while like poles repel.

Front

What is potential energy in the context of magnets?

Back

Potential energy is the energy stored in a system due to the position of the magnets relative to each other. It increases when magnets are moved against the magnetic force.

Front

What is a permanent magnet?

Back

A permanent magnet is a magnet that maintains its magnetic properties over time without the need for an external magnetic field.

Front

What is a temporary magnet?

Back

A temporary magnet is a magnet that only retains its magnetic properties while in the presence of a magnetic field and loses them when the field is removed.

Front

What is the difference between attraction and repulsion in magnets?

Back

Attraction occurs when opposite poles of magnets come together, while repulsion occurs when like poles push away from each other.

Front

How does distance affect the magnetic force between two magnets?

Back

The magnetic force decreases as the distance between the magnets increases.

Front

What is the role of magnetic poles?

Back

Magnetic poles are the regions of a magnet where the magnetic force is strongest. Every magnet has a north and a south pole.

Front

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

Back

The potential energy increases if the magnet is moved against the magnetic force.

Front

What is the significance of the magnetic field?

Back

The magnetic field is the area around a magnet where magnetic forces can be detected and is responsible for the attraction or repulsion of other magnets.

Front

What is the formula for calculating magnetic force?

Back

The magnetic force can be calculated using the formula F = (k * |q1 * q2|) / r^2, where F is the force, k is a constant, q1 and q2 are the magnetic charges, and r is the distance between them.