Electric Charge and Forces Flashcard

Front

What is an electromagnet?

Back

A temporary magnet whose magnetic field is produced by electrical current.

Front

Where is the magnetic field strongest in a magnet?

Back

The magnetic field is strongest at both the magnet’s poles.

Front

What indicates an increase in the strength of an electromagnet?

Back

If the spoon picks up more paper clips after wrapping more wire around it.

Front

What evidence supports a non-contact force between two balloons?

Back

The balloons move away from each other when both are rubbed with wool, even though they are not in contact.

Front

What is a charged object?

Back

Matter with a surplus or deficiency of electrons.

Front

What is the definition of magnetic field?

Back

A region around a magnet where magnetic forces can be detected.

Front

What happens when like charges are brought close together?

Back

They repel each other.

Front

What happens when opposite charges are brought close together?

Back

They attract each other.

Front

What is static electricity?

Back

The buildup of electric charge on the surface of objects.

Front

What is the role of a battery in an electromagnet?

Back

It provides the electrical current needed to create a magnetic field.