Creating and Strengthening Electromagnets

Creating and Strengthening Electromagnets
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Slide 1: Tekstslide
PhysicsLower Secondary (Key Stage 3)

In deze les zitten 13 slides, met interactieve quizzen en tekstslides.

Onderdelen in deze les

Creating and Strengthening Electromagnets

Slide 1 - Tekstslide

Deze slide heeft geen instructies

Learning Objective
At the end of the lesson you will be able to explain how to make an electromagnet and how to make the electromagnet's magnetic force stronger.

Slide 2 - Tekstslide

Introduce the learning objective and explain its importance in the field of electronics.
What do you already know about electromagnets?

Slide 3 - Woordweb

Deze slide heeft geen instructies

What is an Electromagnet?
An electromagnet is a type of magnet that is created by passing an electric current through a wire coil.

Slide 4 - Tekstslide

Explain the basic concept of an electromagnet and show images of real-life examples.
Making an Electromagnet
To make an electromagnet, you will need a battery, a wire, and a nail. Wrap the wire around the nail and connect it to the battery. The nail will become magnetic.

Slide 5 - Tekstslide

Demonstrate how to make an electromagnet and have students follow along.
Factors Affecting Magnetic Force
The magnetic force of an electromagnet can be affected by the number of turns in the wire coil, the amount of current passing through the wire, and the material of the core.

Slide 6 - Tekstslide

Explain the factors that affect magnetic force and show how each one can be adjusted.
Increasing the Number of Turns
Increasing the number of turns in the wire coil will increase the magnetic force of the electromagnet.

Slide 7 - Tekstslide

Show how to increase the number of turns and have students try it themselves.
Increasing the Amount of Current
Increasing the amount of current passing through the wire will also increase the magnetic force.

Slide 8 - Tekstslide

Show how to increase the amount of current and have students try it themselves.
Using Different Cores
Using a different core material, such as iron or steel, can also increase the magnetic force.

Slide 9 - Tekstslide

Show examples of different core materials and explain their properties.
Experiment Time!
Have students experiment with different combinations of wire coil turns, current, and core materials to see how they affect the magnetic force of their electromagnet.

Slide 10 - Tekstslide

Provide materials for students to experiment with and give them guidance on how to record their results.
Write down 3 things you learned in this lesson.

Slide 11 - Open vraag

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.
Write down 2 things you want to know more about.

Slide 12 - Open vraag

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.
Ask 1 question about something you haven't quite understood yet.

Slide 13 - Open vraag

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.