Standard Science Primary 5 Systems

Siti set up an electrical circuit with a battery, a bulb, and a switch. She noticed the bulb did not light up. Based on the diagram, what is the reason?

A The bulb is fused.
B The battery is flat.
C There are too few batteries.
D The switch is open.
Show Worked Solution

Worked Solution

Step 1: Observe the circuit diagram components. Step 2: The switch is in the open (up) position. Step 3: An open switch creates a gap in the circuit, making it an open circuit. Step 4: Electric current cannot flow through an open circuit.

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