Magnets & Electromagnets

Front

What are the ends of a magnet called?

Back

North and South poles

Front

What materials are needed to create an electromagnet?

Back

Wire, battery, and iron ore (nail)

Front

What type of materials can magnets attract?

Back

Iron and other ferromagnetic materials

Front

What is an electromagnet?

Back

A type of magnet that can be turned on and off using electricity.

Front

What happens to an electromagnet when the power is turned off?

Back

It is no longer a magnet, and the magnetic force goes away.

Front

What is the principle behind how magnets work?

Back

Magnets produce a magnetic field that exerts a force on other magnets and magnetic materials.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What is the difference between permanent magnets and electromagnets?

Back

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

Front

How does the strength of an electromagnet change?

Back

The strength can be increased by increasing the current, adding more coils of wire, or using a stronger core material.

Tags

NGSS.MS-PS2-3

Front

What is magnetic field strength measured in?

Back

Tesla (T) or Gauss (G)

Tags

NGSS.MS-PS2-3

Front

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

Back

The core material enhances the magnetic field produced by the coil of wire.