Rules for V/I/R: Concept Review
Science
Year 9
10 questions
~20 mins
1 views0 downloads
About This Worksheet
A Physics worksheet focusing on the fundamental rules governing Voltage (V), Current (I), and Resistance (R) in Series and Parallel circuits. Designed to reinforce understanding of the principles and their applications.
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Rules for V/I/R: Concept Review
Subject: ScienceGrade: Year 9
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Untitled Worksheet
Grade Year 9
A
Understanding the Rules for V/I/R in Series and Parallel Circuits
Answer the following questions to review your understanding of the rules governing voltage, current, and resistance in electrical circuits.
1.
Define voltage (V) in an electrical circuit and explain its role in series and parallel configurations.
[2 marks]2.
Describe how current (I) behaves in series and parallel circuits.
[2 marks]3.
Explain the concept of resistance (R) and how it differs between series and parallel arrangements.
[2 marks]4.
Calculate the total resistance in a series circuit with resistors of 10Ω, 20Ω, and 30Ω.
[3 marks]5.
In a parallel circuit with resistors of 5Ω, 10Ω, and 20Ω, find the total resistance.
[3 marks]6.
A circuit has a total voltage of 12V and a total current of 3A. What is the total resistance? Show your calculation using Ohm's Law.
[3 marks]7.
Identify the key safety precaution when working with electrical circuits involving resistors and explain why it is important.
[2 marks]8.
Describe a practical scenario where understanding V/I/R rules in parallel circuits is essential in everyday life.
[4 marks]9.
Multiple Choice: Which of the following statements is true for a series circuit?
[1 mark]AVoltage remains the same across all components
BCurrent divides among branches
CTotal resistance decreases as more resistors are added
DCurrent is the same through all components
10.
Fill in the blank: In a parallel circuit, the voltage across each branch is ________.
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet