Electric Circuits
Conductors/Insulators
Electric Safety
100

What do we call a complete path that electricity flows through?

Circuit

100

What is a conductor?

Something electricity can flow through.  

100

Should you touch wires or plugs with wet hands?  Why?

NO!  Water lets electricity flow easily. Touching a plug or wire with wet hands can give you a shock, which can hurt you.

200

Name two things that can happen if a circuit is broken.  

Electricity stops flowing and whatever is powered (light, machine) turns off.  
200

Name on conductor you may use in a classroom?  

Wire/Metal/Aluminum Foil

200

Is it safe to play near power lines?  

No!  Power lines carry a lot of electricity, much more than at home. Even being close can be dangerous because electricity can jump through the air.

300

Yes or No:  electricity can flow through a circuit even when a switch is off.  Why? 

No, because there is a gap in the circuit.  

300

What is an insulator?

Something electricity can't flow through.  
300

Name one way to stay safe when using electricity at home.


Don’t touch plugs with wet hands, keep wires dry, ask an adult for help, don’t stick anything in outlets.  Electricity is powerful and can hurt you. Following these rules prevents accidents like shocks, burns, or fires.

400

What does the long line and short line in a schematic represent?  

Battery

400

Name one insulator you use every day?  

Plastic, Glass, Rubber, Wood

400

True or False: You can safely unplug a cord by pulling the wire.


False!  Pulling the wire can damage it and expose the metal inside. Exposed wires can shock you or start a fire. Always grab the plug itself.

500
Which direction does electricity flow?  

- to + although most textbooks show the conventional method which is + to -.  

500

Which would you use to make a safe handle on a metal tool:  a conductor or insulator?   

Insulator

500

Why should you never put metal objects into an electrical outlet?


Because metal conducts electricity, and you could get a serious shock.  Electricity flows through metal easily, and if it goes through your body, it can hurt or even be life-threatening.