M. 12 Magnetism Flashcard

Front

What happens to the magnetic force in an electromagnet if the electricity is turned off?

Back

The magnetic force disappears.

Front

How could you increase the strength of an electromagnet?

Back

Increase the number of wire coils, increase the current, or use a better core material.

Front

Name 2 factors that affect the force of attraction or repulsion between two magnets.

Back

Distance between the magnets and strength of the magnetic fields.

Front

Define the relationship between magnetism and electricity.

Back

Electricity can create magnetism, and magnetism can induce electricity.

Front

What could affect the accuracy of a compass?

Back

Nearby magnetic fields can affect compass accuracy.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is the role of the core material in an electromagnet?

Back

The core material enhances the magnetic field produced by the wire coils.

Front

What is the magnetic field?

Back

The magnetic field is the region around a magnet where magnetic forces can be detected.

Front

What is the difference between permanent magnets and electromagnets?

Back

Permanent magnets produce a constant magnetic field, while electromagnets can be turned on and off.

Front

What is the unit of measurement for magnetic field strength?

Back

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