Electro-Magnets, Conductors and Insulators

Is Iron a Conductor or Insulator?

• Conductor
• Insulator

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

What is the difference between a conductor and an insulator?

• An insulator allows electricity to flow through it easily and a conductor does not
• A conductor allows electricity to flow through it easily and an insulator does not.
• An insulator is magnetic and a conductor is not
• A conductor is magnetic and an insulator is not

A great conductor of energy is:

• wood
• plastic
• metal
• cloth

What object would best complete this circuit?

• A battery
• a peice of yarn
• an insulator
• a conductor

The plastic covering is there to:

• Provide a conductor for electrical energy to flow.
• Provide an insulator so that electrical energy will not pass outside of the wires.
• Provide a conductor so that electrical energy can NOT flow.
• Provide an insulator so that electrical energy can flow.

Olivia wanted to complete her circuit with a conductor.  What object is her best option?

• Wood stick
• Glass bead
• Aluminum foil
• Styrofoam

You know that the object connected to the wires is a conductor because:

• The light bulb is glowing bright.
• It's a complete circuit.
• It's a closed circuit.
• The object is shiny.

Which of the following is shown in the picture?

• Electromagnet
• Electric generator
• Electric motor
• Transformer

How are electromagnets different from magnets?

• magnets can be turned on/off
• you can turn an electromagnet on/off
• magnets are more powerful
• magnets have a North and South pole