Magnetic Fields

Front

What is potential energy?

Back

Potential energy is the energy that is stored in an object or system due to its position or configuration.

Front

What device uses a magnetic needle for navigation?

Back

A compass is a device that has a magnetic needle that spins freely and is used for navigation because its needle usually points north.

Front

What does it mean to convert energy?

Back

To convert energy means to change it from one type to another.

Front

Where are magnetic fields strongest?

Back

Magnetic fields are strongest at both poles.

Front

What is a model in scientific terms?

Back

A model is an object, diagram, or computer program that helps us understand something by making it simpler or easier to see.

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Front

What is the relationship between electricity and magnetism?

Back

Electricity and magnetism are interrelated; a changing electric field creates a magnetic field and vice versa.

Front

What is the unit of magnetic field strength?

Back

The unit of magnetic field strength is the Tesla (T).

Front

What is the Earth's magnetic field?

Back

The Earth's magnetic field is the magnetic field that extends from the Earth's interior out into space, where it interacts with solar wind.

Front

What is a magnetic pole?

Back

A magnetic pole is one of the two ends of a magnet where the magnetic force is strongest; they are called the north and south poles.