OUTCOME
By the end of the lesson you will be able to describe the properties of magnetism and be able to use correct conventions when describing magnetic fields.
Magnetic objects generate a magnetic field. Magnetic fields are also generated by current carrying wire. Natural magnets are created when molten iron cools in the Earth's magnetic field.
Magnetic fields vs other fields we have looked at
LEARNING TASKS
Explain
1. How are magnetic fields and electricity related?
2. List the four factors that affect the magnetic effect.
3. What is a tiny magnet?
4. Why is orbital magnetism not a factor in an atoms magnetism
5. How does the fill of the outer electron shell (valence shell) effect the ability for a material to be magnetised?
6. How is it an element's atom can be magnetic but the material as a whole is not?
7. define ferromagneitc and antiferrmagnetic
8. What are domains?
9. How is it an iron material can be non-magnetic
10. Use the diagram at 5:45 to summarise what makes a magnet
Explore and Elaborate
Evaluate
Try these questions: Qs 1-7