Magnetism & Electricity

Benjamin Franklin is famous because he

• improved the filament in light bulbs
• built the first electric motor
• discovered that lightning is a form of electricity
• had 15 brothers and sisters

• this is a parallel circuit
• this is an open circuit
• this is a closed circuit

Our balloon stuck to Mrs. Hallenbeck's hair because of

• friction

• gravity

• magic

• static electricity

• this is a simple circuit
• this is a series circuit
• this is a non-functioning circuit
• this is a parallel circuit

• If we unscrew the second light bulb in this circuit, the first light bulb will turn off
• If we unscrew the second light bulb in this circuit, the first light bulb will break
• If we unscrew the second light bulb in this circuit, the first light bulb will stay on

In a parallel circuit, energy

• gets stuck in the battery
• has more than one pathway to travel
• comes from only one battery
• has only one pathway to travel

A magnet is surrounded by a _____________ ___________, which is invisible and is stronger at the poles.

• static electricity
• electric current
• big circle
• magnetic field

To make an electromagnet, we need all of these materials EXCEPT

• a magnet
• wire
• a nail
• a battery

An example of an insulator is

• copper wire
• a paperclip
• yarn
• a magnet

An example of a conductor is

• wood
• metal
• rubber
• paper