Magnetic

Magnetism is a force that certain kinds of objects, such as iron and steel, can exert on each other without physically touching. These objects are said to be magnetic and can either attract or repel other objects.

Magnetic Materials

• Iron
• Cobalt
• Nickel

Magnetic Poles

Magnets have two poles - a north pole and a south pole. Like poles repel each other, and unlike poles attract each other.

Magnetic Field

When a magnetic material is placed near a magnet, it experiences a force. This force is due to the magnetic field, which is the area around a magnet where its magnetic force is exerted.

Electromagnetism

When electricity flows through a wire, it creates a magnetic field. This is the principle behind electromagnets, which are temporary magnets that can be turned on and off by controlling the flow of electricity.

Study Guide

1. What are the three main magnetic materials?

The three main magnetic materials are iron, cobalt, and nickel.

2. What are the two poles of a magnet and how do they interact with each other?

The two poles of a magnet are the north pole and the south pole. Like poles repel each other, and unlike poles attract each other.

3. What is a magnetic field?

A magnetic field is the area around a magnet where its magnetic force is exerted.

4. How are electromagnets different from permanent magnets?

Electromagnets are temporary magnets that can be turned on and off by controlling the flow of electricity, while permanent magnets have a constant magnetic field.

[Magnetic] Related Worksheets and Study Guides:

• MagnetsScience • First Grade
• MagnetismScience • Sixth Grade