1. Which one is NOT a part of an electric circuit?
A. wire/path C. source/battery
B. switch D. electrical tape
_____2. Which set will make a complete electric circuit?
A. wire, bulb, load, source C. switch, load, wire, source
B. load, source, path, wire D. source, bulb, battery, wire
_____3. What makes the bulb lighted in a closed circuit?
A. there is a wire connected C. the bulb is working
B. the battery is full D. electricity flows in a complete path
_____4. Which one is NOT a reason for an open circuit?
A. The switch is turned ON.
B. The switch is turned OFF.
C. The bulb is busted/not working.
D. There is a gap somewhere in its path/wire.
_____5. Which circuit will light the bulb in a complete path?
A. open circuit C. both a and b
B. closed circuit D. none of the above