Electricity and Electromagnetism Review

A material that allows energy to easily flow through it

• insulator
• conductor
• electricity
• cotton

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A closed path that an electric current can move along

• open circuit
• closed circuit
• insulator
• current mover

The flow of charged particles along a path is called...

• electricity
• charging pathway
• closed circuit

Magnetism created by an electric current

• electricity
• electromagnetism
• wind energy

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The plastic around the wire is

• conductor
• insulator
• decoration

The flow of electricity requires a

• complete path
• incomplete path
• insulated current

Tim made an electromagnet with one d-cell and wrapped an uninsulated wire 30 times.  It did not work.  How could he fix it?

• wrap the wire more times
• include a switch
• use insulated wire
• use another d-cell

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

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How can you complete an electric circuit?

• add more light bulbs
• close the switch
• cutting the wire
• cross your fingers

For the bulb to light what must be placed in the space.

• a conductor
• an insulator
• a magnet
• a rubber wire