50+ circuits worksheets on Quizizz | Free & Printable - Free Printable

Let's go through each of the first four questions from your Quizizz worksheet on Electrical Circuits and solve them with clear explanations.

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Question 1: Why is electrical wiring usually made from copper?

Image: Shows copper wires.

Options:
A. Because copper is not magnetic
B. Because copper is shiny
C. Because copper insulates electricity
D. Because copper conducts electricity

✔ Correct Answer: D. Because copper conducts electricity

Explanation:
Copper is an excellent electrical conductor, meaning it allows electric current to flow through it easily. This makes it ideal for use in electrical wiring. While copper is not magnetic (A) and is shiny (B), those are not reasons for its use in wiring. Also, copper does not insulate electricity — in fact, it’s the opposite. So, D is correct.

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Question 2: A material that does NOT let electricity pass through it is called...

Options:
A. An electric appliance
B. An electrical source
C. An electrical conductor
D. An electrical insulator

✔ Correct Answer: D. An electrical insulator

Explanation:
An insulator is a material that resists the flow of electric current. Examples include rubber, plastic, and glass. In contrast:
- A conductor (C) allows electricity to flow.
- An electric appliance (A) uses electricity.
- An electrical source (B) provides electricity (like a battery).

So, D is correct.

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Question 3: What is a circuit that only has ONE path for electricity to flow?

Image: Simple circuit with one battery and one bulb connected in a loop.

Options:
A. Light bulb
B. Closed circuit
C. Parallel circuit
D. Series circuit

✔ Correct Answer: D. Series circuit

Explanation:
In a series circuit, components are connected in a single path, so the current flows through each component one after the other. If you remove one component, the circuit breaks. The diagram shows a single loop — no branching — so this is a series circuit.

Note:
- A parallel circuit has multiple paths.
- A closed circuit means the circuit is complete (current can flow), but doesn’t specify the number of paths.
- A light bulb is just a component.

So, D is correct.

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Question 4: What is a circuit with several paths for electricity to flow?

Image: Two light bulbs connected in separate loops from the same battery — two parallel branches.

Options:
A. Open circuit
B. Series circuit
C. Conductor
D. Parallel circuit

✔ Correct Answer: D. Parallel circuit

Explanation:
In a parallel circuit, there are multiple paths for current to flow. Each bulb is on its own branch, so if one fails, the other can still work. This is shown in the diagram.

- An open circuit (A) is incomplete — no current flows.
- A series circuit (B) has only one path.
- A conductor (C) is a material, not a type of circuit.

So, D is correct.

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✔ Summary of Answers:

| Question | Correct Answer | Reason |
|--------|----------------|-------|
| 1 | D | Copper conducts electricity well |
| 2 | D | Insulators block electricity |
| 3 | D | One path = series circuit |
| 4 | D | Multiple paths = parallel circuit |

Let me know if you'd like help with the rest of the quiz!