Electromagnetism Inv. 3 Study Guide

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It consists of a coil of wire, often wrapped around a core material, which becomes magnetized when electricity flows through the wire.

Front

What is the role of plastic insulation in electrical circuits?

Back

Plastic insulation prevents the flow of electricity outside the wire, ensuring that the current flows only through the intended pathway and reducing the risk of short circuits.

Front

What is potential energy in the context of a D-cell battery?

Back

Potential energy in a D-cell battery refers to the stored energy that can be converted into electrical energy when the circuit is completed.

Front

What does a coil wire do in an electromagnet?

Back

A coil wire provides the pathway to carry electricity into the core, allowing the core to become magnetized.

Front

How can you tell if electricity is flowing in a circuit?

Back

You can tell if electricity is flowing in a circuit by observing evidence such as a lit bulb, a moving motor, or a buzzing sound from a device.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position or state.

Front

What is the function of a circuit in an electromagnet?

Back

The function of a circuit in an electromagnet is to provide a closed loop for electricity to flow, enabling the electromagnet to operate.

Front

What happens when electricity flows through a wire?

Back

When electricity flows through a wire, it creates a magnetic field around the wire, which can attract or repel other magnetic materials.

Front

What is the significance of a lit bulb in an electrical circuit?

Back

A lit bulb indicates that electricity is flowing through the circuit, providing evidence of electrical activity.

Front

What materials are commonly used as cores in electromagnets?

Back

Common materials used as cores in electromagnets include iron, steel, and other ferromagnetic materials, which enhance the magnetic field.