U1.13 Checkpoint #3

Front

What is the area of magnetic force around a magnet called?

Back

Magnetic field

Front

What do solenoids and electromagnets use to produce magnetic fields?

Back

Electric current and coiled wires

Front

What changes the north and south poles of a solenoid?

Back

The direction of the current

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What is the unit of electric current?

Back

Ampere

Front

What is magnetism?

Back

A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

Front

What is a solenoid?

Back

A coil of wire that produces a magnetic field when carrying an electric current.

Front

What is the difference between a series circuit and a parallel circuit?

Back

In a series circuit, components are connected end-to-end, while in a parallel circuit, components are connected across common points.

Front

What is a ferromagnetic core?

Back

A core made of ferromagnetic material that enhances the magnetic field of an electromagnet.

Front

What happens to the magnetic field strength when the number of loops in a coil increases?

Back

The magnetic field strength increases.