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What a current-carrying wire is wrapped around an iron core, what can it create?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
Which energy transformation occurs in an electric motor?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
What does a transformer between utility wires and your house do?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
What will the north poles of two bar magnets do when brought together?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
How many poles to all magnets have?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
What prevents most charged particles from the Sun from hitting the Earth?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
What can iron filings be used to show?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
Why does the needle of a compass point to magnetic North?
Two
Magnetic field
The compass needle alligns itself with Earth's magnetic field.
Electrical to kinetic
Repel.
A magnet
Earth's magnetosphere.
Decreases voltage.
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