Electric circuits

1. Ravi wonders: When does a light turn on in a classroom lamp?

   • The wire is long
   • The circuit is closed (right)
   • The switch is open

2. In science class, Leo asks: What part of a circuit stops electricity from flowing?

   • A long wire
   • A bright bulb
   • An open switch (right)

3. In science class, Zoe asks: If you cut the wire between the battery and bulb, what happens?

   • The bulb works better
   • The wire heats up
   • The light turns off (right)

Tip: Electricity flows only in a complete loop. If any part of the path is broken, like a cut wire or open switch, no current can pass through.