Magnetic Forces and Fields STUDY GUIDE

Front

What happens when a magnet is moved against a stronger magnetic force?

Back

Energy is transferred to the magnetic field as potential energy.

Front

What is the best way to increase the strength of an electromagnet?

Back

Increase the number of wire coils around the core.

Front

What best describes an electromagnet?

Back

A magnet produced by the magnetic fields of an electric current.

Front

What experiment best demonstrates the relationship between magnetic potential energy and kinetic energy?

Back

Measuring the distance two magnets repel each other when released.

Front

What is magnetic potential energy?

Back

The energy stored in a magnetic field due to the position of magnets.

Front

What is the effect of increasing the distance between two magnets?

Back

The magnetic force decreases as the distance increases.

Front

What is the role of a core in an electromagnet?

Back

The core enhances the magnetic field produced by the electric current.

Front

What happens to the magnetic field when current flows through a wire?

Back

A magnetic field is generated around the wire.

Front

What is the relationship between electric current and magnetic fields?

Back

Electric current produces magnetic fields.

Front

What is the principle of magnetic repulsion?

Back

Like poles of magnets repel each other.