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What is a magnet?
A magnet is any object that has a magnetic force. They attract certain metals such as iron.
What are the two types of magnets?
permanent magnets and induced or temproary magnets.
What's a permanent magnet?
A magnet that always has a magnetic force
What's a temporary magnet?
A magnet that has a magnetic force just for a period of time.
What is a magnetic field?
An invisible area that fills a space where a magnetic force works. It's produced by moving charges.
What are the two types of magnetic poles?
north pole (N) and south pole (S)
"The magnetic poles are where the magnetic force is weaker." True or false?
The magnetic poles are where the magnEtic force is STRONGER.
What happens when we put two poles together with opposite poles or charge?
They attract
What happens when we put two magnets with identical poles together?
They repel
What is the name of a mineral that is a magnet and found in nature?
magnetite
True or false- electromagnets cannot be turned off.
False. Electromagnets can be turned on and off.
Why is Earth's magnetic field useful?
It acts as a real and natural magnet. It reflects harmful UV ray, space radiations and particles from solar wind
Why does a compass work?
The core of Earth is filled with liquid iron which means Earth has a giant magnetic field because it acts as a natural and real magnet.
What are the missing labels in this diagram?
Open circuit, power source, copper wire
What are the missing labels in this diagram?
Closed circuit, N pole, S pole and electromagnet
How were electromagnets built by humans?
when electricity travels through an electrical circuit, a magnetic field is create and the cable of the circuit acts like a magnet.
