Magnetism Definition
Magnetism is a force making certain metals attract or repel without touching. This is due to magnets' invisible magnetic fields.
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Magnets & Static Electricity
Fun Facts
- Magnets can push or pull other magnets, depending on the poles.
- Electricity flowing through a wire produces a magnetic field (electromagnets).
- Size and strength of magnets are not necessarily related.
Why Do We Need To Know About Magnetism
Magnetism is a hidden force that is very important in our everyday lives. It helps with simple things like keeping notes on a fridge. Magnetism is more than just making things stick together; it helps make things work better and easier for us.
We see magnetism at work in big machines like MRI scanners at hospitals. Knowing about magnetism can help you find jobs in different areas like helping the environment, healthcare, creating new technology, and even in making movies and games. Learning about magnetism is about opening up new chances for the future.
Frequently Asked Questions
Check out the Full Lesson on Magnets & Static Electricity
In this lesson, we learn that:
- Forces can be applied at a distance through magnetism and static electricity.
- The closer magnets are, the stronger the force.
- Magnets can push or pull other magnets, depending on the poles.
- Electromagnets can be turned on and off with electricity.
- Static electricity can push or pull things without touching them.
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