1. Word cloud
120 seconds
What is a simple definition of magnetism?
2. Slide
60 seconds
Magnetic forces are created when two magnets or objects with magnetic fields interact. Magnets can attract or repel depending on the direction of the magnetic fields. The strength of the magnetic force depends on the distance between the objects and the strength of the magnetic fields.
Magnetic Forces
3. Slide
60 seconds
Magnetic Field: A region of space around a magnet or an electric current in which a magnetic force can be detected. Magnetic Force: A force that acts between two magnets or between a magnet and an electric current. Poles: The two ends of a magnet where the force of the magnet is strongest.
Concepts:
4. Slide
60 seconds
The force of a magnet is strongest at its poles. Some materials, such as aluminum, copper, and gold, are not magnetic. The Earth has its own magnetic field and it is caused by the motion of liquid iron in its outer core.
Did you know?
5. Open question
180 seconds
Work together in pairs: Q: What is the difference between a permanent magnet and an electromagnet?
6. Open question
180 seconds
Work together in pairs: What is the difference between a magnetic field and a magnetic force?
7. Drawings
450 seconds
Brain break: Draw a fish driving a car in the shape of a carrot.
8. Poll
60 seconds
What is the force called that causes magnetic materials to be attracted to a magnet?
- Magnetic force
- Gravitational force
- Electric force
9. Poll
60 seconds
What is the unit used to measure the strength of a magnetic field?
- Tesla
- Watt
- Joule
10. Poll
60 seconds
Which type of magnets are found in nature?
- Permanent magnets
- Electromagnets
- Temporary magnets
11. Poll
60 seconds
What happens when two like poles of a magnet are brought together?
- They repel each other
- They attract each other
- Nothing happens
12. Poll
60 seconds
Which type of material can be easily magnetized?
- Iron
- Copper
- Aluminum
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