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PIMSO 2021 - Science - Grade 6 - National Round Mock Test Question 15

PIMSO Science · PIMSO 2021 - Science - Grade 6 - National Round Mock Test

Question 15

Samson wanted to find out the electrical conductivity of 3 rods, P, Q and R, made of different materials. He inserted the rods into the circuit at positions A, B, and C as shown below. The table below shows the results collected at the end of the experiment.
Rods at A, B, C → Bulbs 1, 2, 3 lit?
P, Q, R → yes, yes, yes.
Q, R, P → no, no, no.
R, P, Q → yes, no, yes.
Based on the data above, which one of the following conclusions is correct?

Question illustration
  1. Only rod R is a non-conductor of electricity.
  2. Only rods Q and R are non-conductors electricity.
  3. Only rod P is a non-conductor of electricity.
  4. Rods P and Q are better conductors of electricity than rod R.