Understanding Simple Circuits
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Understanding Simple Circuits
Circuit basics
A simple circuit has a power source, such as a cell, connected to a component such as a lamp by conducting wires. In a complete circuit, the wires and components make an unbroken loop, so electric current can flow and the lamp can light. An open switch or a gap breaks the loop. A closed switch joins the circuit. A circuit with two cells can provide more energy to a lamp than one cell, but the cells must be connected correctly. In a simple series circuit, all components are on the same path.
- The cell sends light through the air to the lamp.
- Electric current can flow around the unbroken conducting path and through the lamp.
- The wires store electricity until the lamp glows.
- The switch makes the lamp produce its own power.
- Closed switch
- Open switch
- Conducting wire
- Provides a path for current
- Joins the circuit path
- Leaves a gap in the circuit
- A plastic ruler
- A rubber band
- A metal paper clip
- A wooden craft stick
2 printable pages
Page 1
Page 2
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