Electricity and Magnetism

A particle that carries a negative electric charge is called a(n) ______.

• neutron
• atom
• proton
• electron

The region in which a magnetic force acts is called a

• line of force

• pole

• magnetic field

• field of attractio

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A coiled current carrying wire is called

• an electromagnet

• a solenoid

• a compass

• a ferromagnet

Unlike poles of different magnets

• attract each other

• cancel each other out

• repel each other

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The magnetic field is strongest

• at the poles

• in the middle

• at the north pole

• at the south pole

THe north end of a compass needle always points to

• our geographic north pole

• our geographic south pole

• our magnetic north pole

• our magnetic south pole

Earth acts like a magnet because its core contains

• molton carbon

• solid nickel and iron

• rocks

• molten nickel and iron

Which of the following would be an example of an insulator?

• iron

• aluminum

• rubber

• silver

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The rule of charged particles states that

• opposites attract

• opposites repel

• opposites don't interact

• likes attract

These are responsible for the flow of electricity

• protons

• electrons

• neutrons

• wires