Forces at a Distance

Front

What creates a magnetic field when it travels through a conductor?

Back

Current

Front

What is the primary use of a magnet in navigation?

Back

To show directions

Front

Which of the following is an example of a magnetic object?

Back

Iron screw

Front

What changes when the strength of the magnetic field changes between a coil and a permanent magnet?

Back

Attractive force

Front

True or False: In magnets and electromagnets, dissimilar (opposite) poles attract.

Back

True

Front

What is the term for the force that pulls two magnetic objects together?

Back

Magnetic attraction

Front

What is the term for the area around a magnet where magnetic forces can be felt?

Back

Magnetic field

Front

What happens to the magnetic field when an electric current is increased?

Back

The magnetic field strength increases.

Front

What is an electromagnet?

Back

A magnet created by electric current flowing through a coil of wire.

Front

What is the effect of like poles of a magnet when brought close together?

Back

They repel each other.