How to Make the World's Simplest Motor: SciShow Experiments

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Science, Engineering, Other, Physics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the components needed to build the simplest form of an electromagnetic motor?
A ceramic magnet, a C battery, a piece of aluminum wire, and a drywall screw
A ceramic magnet, a D battery, a piece of copper wire, and a nail
A neodymium magnet, a C battery, a piece of aluminum wire, and a nail
A neodymium magnet, a D battery, a piece of copper wire, and a drywall screw
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What force is responsible for the motion in a homopolar motor?
Gravitational force
Centripetal force
Frictional force
Lorentz force
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are electricity and magnetism related in the context of electromagnetism?
They only interact under specific conditions
They are two forms of the same force
They are unrelated phenomena
They are completely independent forces
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the homopolar motor not widely used in practical applications?
It is too complex to build
It is too large for most devices
It is inefficient and drains the battery quickly
It requires rare materials
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do most efficient battery-powered electric motors use to amplify the magnetic field?
Permanent magnets
Series of coils
Larger batteries
Multiple screws
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