Toggle Navigation
Games
Blog
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
Contact us
Help center
Sign in
Study
UNIT 6- NATURAL SCIENCE
0
%
0
0
0
Back
Restart
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.
Oops!
Okay!
What is the name of a mineral that is a magnet and found in nature?
magnetite
Oops!
Okay!
Oops!
Okay!
What's a permanent magnet?
A magnet that always has a magnetic force
Oops!
Okay!
What are the two types of magnetic poles?
north pole (N) and south pole (S)
Oops!
Okay!
What are the missing labels in this diagram?
Closed circuit, N pole, S pole and electromagnet
Oops!
Okay!
What is a magnetic field?
An invisible area that fills a space where a magnetic force works. It's produced by moving charges.
Oops!
Okay!
What happens when we put two poles together with opposite poles or charge?
They attract
Oops!
Okay!
True or false- electromagnets cannot be turned off.
False. Electromagnets can be turned on and off.
Oops!
Okay!
What's a temporary magnet?
A magnet that has a magnetic force just for a period of time.
Oops!
Okay!
"The magnetic poles are where the magnetic force is weaker." True or false?
The magnetic poles are where the magnEtic force is STRONGER.
Oops!
Okay!
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
Oops!
Okay!
What happens when we put two magnets with identical poles together?
They repel
Oops!
Okay!
What is a magnet?
A magnet is any object that has a magnetic force. They attract certain metals such as iron.
Oops!
Okay!
We use ..... in our daily lives, in different machines such as a speaker or motor.
electromagnets
Oops!
Okay!
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.
Oops!
Okay!
What are the missing labels in this diagram?
Open circuit, power source, copper wire
Oops!
Okay!
What are the two types of magnets?
permanent magnets and induced or temproary magnets.
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies