Here are the answers and explanations for the worksheet questions.
Part 1: Series Circuit
Task: Draw arrows to show the path electrons move.
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How to draw it: Electrons flow from the negative side of the battery (marked with a
-) through the wires, go through the first light bulb, then through the second light bulb, and finally back to the positive side of the battery (marked with a
+). You should draw arrows pointing away from the negative terminal, moving clockwise through the loop towards the positive terminal.
Question: If a light bulb is missing or broken in a series circuit, will the other bulb light? Explain.
Answer: No, the other bulb will not light. In a series circuit, there is only one single path for the electricity to flow. If one bulb is broken or missing, it creates a gap in the circuit (like an open switch). Because the path is broken, electricity cannot flow anywhere in the loop, so neither bulb will work.
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Part 2: Parallel Circuit
Task: Draw arrows to show the different paths electrons can travel.
*
How to draw it: Start at the negative side of the battery (
-). The wire splits into two branches. Draw arrows showing that some electrons go up through the top wire to the first bulb, while others go down through the bottom wire to the second bulb. After passing through the bulbs, the paths join back together and return to the positive side of the battery (
+).
Question: If a light bulb is missing or broken in a parallel circuit, will the other bulb light? Explain.
Answer: Yes, the other bulb will still light. In a parallel circuit, there is more than one path for the electricity to follow. Each bulb has its own separate connection to the battery. If one bulb breaks, it only stops the flow of electricity on that specific branch. The electricity can still flow through the other complete path to power the remaining bulb.
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Final Answer:
Series Circuit Question: No, the other bulb will not light. Explanation: A series circuit has only one path. If one part breaks, the whole loop is interrupted, and electricity stops flowing completely.
Parallel Circuit Question: Yes, the other bulb will light. Explanation: A parallel circuit has multiple independent paths. If one path is broken, electricity can still flow through the other paths to power the remaining components.
Parent Tip: Review the logic above to help your child master the concept of series parallel circuit worksheets.
