Review Electricity and Magnetism

3. One of the four fundamental forces of nature. It is the force between charged particles and is responsible for electricity, magnetism, and light.
5. The opposition to the flow of electric current. Materials with high resistance make it harder for electricity to pass through.
8. The buildup of electric charges on the surface of an object. It stays in one place until it’s released, like when you get a small shock after walking on carpet.
12. A device that converts mechanical energy (like spinning) into electrical energy, often using magnets and coils of wire.

1. The force of attraction or repulsion between magnets or magnetic materials, like how opposite poles attract and like poles repel.
2. The flow of electric charge (usually electrons) through a material, like a wire.
4. A closed loop or path that electricity flows through. It usually includes a power source, wires, and devices like bulbs or switches.
6. The amount of electrical potential energy that pushes electric charges through a circuit. It’s often called the “pressure” of electricity.
7. The area around a charged object where it can exert a force on other charged objects. You can think of it as an invisible “zone of influence.”
9. A type of electrical current that flows in only one direction, like the electricity from batteries.
10. A type of electrical current that changes direction periodically. This is the kind of electricity used in homes.
11. The invisible region around a magnet where magnetic forces can be detected. It shows where magnetic force is acting.