Welcome to the GCSE Physics Ninja Electromagnetism course.

These video lessons are based on question-and-answer flashcards. You can either make your own or purchase the printable flashcards from the shop.

What will I learn in this course?

When you have completed this course, you will be able to...

• Describe the properties of magnets and their effects on other materials.
• Recall the magnetic properties of iron vs. steel.
• Draw the typical magnetic field pattern around a magnet.
• Understand how to magnetise and demagnetise a magnetic material.
• Explain how a current creates its own magnetic field.
• Describe how to make a simple electromagnet and explain its various uses.
• Understand the motor effect and use Fleming's left hand rule.
• Describe the construction of a DC motor
• Explain how electromagnetic induction can generate an EMF in a conductor.
• Predict the direction of an induced current.
• Describe how a rotating coil generator works.
• Understand how a transformer uses electromagnetic induction to change voltages.
• Recall the structure of a simple transformer.
• Calculate input and output voltages using the transformer voltage-turns equation.
• Use the transformer power equation to calculate voltages and currents.
• Explain the differences between a standard iron core transformer and a switch mode transformer.