Standard Science Primary 6 Energy

Study the circuit diagram below. Why is the bulb NOT lighting up?

A The battery is missing.
B The bulb is fused.
C The switch is open.
D The wires are too long.
Show Worked Solution

Worked Solution

Step 1: Trace the path of electricity from the battery through the circuit. Step 2: An open switch breaks the circuit, creating an open circuit. Step 3: Electricity cannot flow through an open circuit, so the bulb does not light up.

Correct answer: The switch is open.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free