FOSS: Energy Investigation 3 review

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 of ferromagnetic material.

Front

What happens to the magnetic field when electric current flows through a wire?

Back

All electric currents produce a magnetic field around the wire.

Front

How does increasing the number of coils in an electromagnet affect its strength?

Back

Increasing the number of coils in an electromagnet will increase the power of the magnet.

Front

What occurs when a needle is rubbed on a magnet?

Back

The needle becomes a magnet.

Front

What are two ways to make an electromagnet stronger?

Back

You can make an electromagnet stronger by adding more wire coils and/or batteries.

Front

What is the difference between a series circuit and a parallel circuit?

Back

In a series circuit, components are connected end-to-end, so the current flows through each component one after another. In a parallel circuit, components are connected across common points, allowing current to flow through multiple paths.

Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be detected. It is represented by field lines that show the direction and strength of the magnetic force.

Front

What is the role of a core in an electromagnet?

Back

The core, often made of iron, enhances the magnetic field produced by the coil of wire, making the electromagnet stronger.

Front

What is the effect of adding more batteries to an electromagnet?

Back

Adding more batteries increases the voltage, which can increase the strength of the electromagnet.

Front

What is a magnet?

Back

A magnet is an object that produces a magnetic field, attracting materials like iron, nickel, and cobalt.