Electric Light & Switch

Project Number: 1

Parts Needed For Circuit: B1, L1, 3, S1, 2, 2, 2, 2

OBJECTIVE: To show how electricity is turned "ON" or "OFF" with a switch.

Description: Build the circuit shown on the left. Place all the parts with a black number 1 next to them on the base grid at first. Then, assemble the pieces marked with a 2. Install two (2) "AA" batteries (not included) into the battery holder (B1). When you close the slide switch (S1), current flows from the batteries through the lamp and back to the battery through the slide switch. In electronics, this is called a closed circuit. When the slide switch is off, the current can no longer flow back to the battery, so the lamp goes out. In electronics, this is called an open circuit.