Which civilization is credited with the invention of the compass in the 12th century?

Electromagnetism Quiz

Quiz
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Other
•
8th Grade
•
Hard
Ven Sona
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Greeks
The Egyptians
The Chinese
The Romans
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is lodestone primarily composed of?
Iron oxide
Copper
Quartz
Magnetite
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true about natural magnets?
They are made from artificial materials.
They are permanent magnets.
They are always temporary magnets.
They can lose their magnetic power over time.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which of the following devices are permanent magnets commonly used?
Batteries
Fuses
Radio speakers
Light bulbs
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method used to create artificial magnets?
Heating the material
Induced magnetism
Cooling the material
Using electric current
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of magnet can have its magnetism turned on and off?
Permanent magnet
Temporary magnet
Natural magnet
Lodestone
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the strongest type of permanent magnet commercially available?
Samarium-cobalt
Ferrite
Alnico
Neodymium
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