Standard Science Primary 5 Systems

Jun Jie tested three objects, X, Y, and Z, in the gap of an electrical circuit. The results are shown below. Which object is an electrical insulator?

A None of the above
B Object Y
C Object Z
D Object X
Show Worked Solution

Worked Solution

Step 1: An electrical conductor allows current to pass, lighting the bulb. Step [2-9]: An insulator stops the current, so the bulb stays off. Step [2-9]: Since the bulb did not light up with Object Y, it is an insulator.

Correct answer: Object Y

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