Electricity is a form of energy caused by the movement of electrons. It can be either static (stationary) or dynamic (flowing). - **Static electricity** occurs when there is an imbalance of electric charges. - **Current electricity** involves the flow of electric charges through a conductor like a wire.
Magnetism is a force that acts at a distance, caused by moving electric charges (usually electrons). Magnets have two poles: - **North** and **South**. Like poles repel each other, while opposite poles attract.
Electromagnetism is the relationship between electricity and magnetism. An electric current can create a magnetic field, and a changing magnetic field can induce an electric current.
Click on the buttons to simulate electric and magnetic fields.
1. What causes electricity?
2. What happens when two like magnetic poles are brought close together?
3. Which of the following materials is commonly used to make electromagnets?
4. What is the relationship between electricity and magnetism?
5. What happens when a magnetic field changes near a conductor?