Last Updated on May 7, 2025 by XAM CONTENT
Hello students, we are providing case study questions for class 7 Science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 Science. In this article, you will find case study questions for cbse class 7 Science chapter 3 Electricity: Circuits and their Components.
| Chapter | Electricity: Circuits and their Components |
| Book | Curiosity: Textbook of Science for Grade 7 |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 7 |
| Subject | Science |
| Useful for | Class 7 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 7 Science Chapterwise Case Study |
Case Study Questions on Electricity: Circuits and their Components
Case Study Question 1
Passage: The Mysterious Bulb Experiment
In a classroom activity, students were given wires, a bulb, a switch, and a cell. They connected the components to form a circuit, but the bulb didn’t glow. They examined the setup and discovered that one of the wires was broken. After replacing it, the bulb glowed brightly. Their teacher asked questions about the flow of current, the role of conductors, and why a complete path is needed.
Q1. What is the most likely reason the bulb did not glow initially?
(a) The bulb was faulty
(b) The cell was too weak
(c) The wire was broken
(d) The switch was open
Answer: (c)
Difficulty Level: Moderate
Explanation: A broken wire interrupts the circuit, preventing current flow and causing the bulb to remain off.
Q2. What is required for an electric current to flow in a circuit?
(a) A plastic wire
(b) An open switch
(c) A complete and closed path
(d) A glowing bulb
Answer: (c)
Difficulty Level: Easy
Explanation: A closed, unbroken path is essential for the flow of electric current.
Q3. What is the function of a switch in an electric circuit?
(a) To control the brightness of the bulb
(b) To increase the voltage
(c) To open or close the circuit
(d) To connect the bulb to the wire
Answer: (c)
Difficulty Level: Easy
Explanation: A switch allows us to open (break) or close (complete) the circuit.
Q4. Which of the following materials would best replace the broken wire?
(a) Cotton thread
(b) Rubber strip
(c) Copper wire
(d) Plastic tube
Answer: (c)
Difficulty Level: Moderate
Explanation: Copper is a good conductor of electricity and commonly used to make wires for electric circuits.
Case Study Question 2:
Passage: Testing Conductors and Insulators
During a lab activity, students created a tester circuit using a bulb and cell. They tested different materials like paper, steel spoon, pencil lead, plastic, and water. The bulb glowed with some objects but not with others. The class then discussed conductors, insulators, and the role of materials in allowing current to flow.
Q1. The bulb glowed when a steel spoon was placed in the circuit. This shows that:
(a) The spoon is an insulator
(b) The spoon allows light to reflect
(c) The spoon conducts electricity
(d) The spoon generates electricity
Answer: (c)
Difficulty Level: Moderate
Explanation: The steel spoon conducts electricity, completing the circuit and allowing the bulb to glow.
Q2. Which material would not cause the tester bulb to glow?
(a) Copper wire
(b) Steel pin
(c) Plastic ruler
(d) Graphite rod
Answer: (c)
Difficulty Level: Easy
Explanation: Plastic is an insulator and does not allow current to pass through, so the bulb doesn’t glow.
Q3. What conclusion can be drawn if the bulb in a tester does not glow?
(a) The circuit is open
(b) The object is a conductor
(c) The material tested is an insulator
(d) The bulb is faulty
Answer: (c)
Difficulty Level: Moderate
Explanation: If everything else is functional and the bulb still doesn’t glow, it means the material used is not allowing current—i.e., it’s an insulator.
Q4. Which of the following is a poor conductor but allows some electric current to pass through?
(a) Salt water
(b) Glass
(c) Wood
(d) Air
Answer: (a)
Difficulty Level: Tough
Explanation: Salt water is a weak conductor due to dissolved ions, allowing partial flow of electricity.
We hope the given case study questions for Electricity: Circuits and their Components Class 7 helps you in your learning.
🎮 Bonus Challenge: Can You Solve This Scientific Mystery?
🔌 Solve the Mystery: The Case of the Silent Torch
During a night trek, Aanya’s torch suddenly stopped working. She had just replaced the batteries. Her friend said, “Maybe the circuit isn’t complete!”
Can you help Aanya figure out what went wrong by solving the clues?
Also check
- Curiosity Class 7 Science Chapter 12 Earth, Moon, and the Sun Case Study Questions
- Curiosity Class 7 Science Chapter 11 Light: Shadows and Reflections Case Study Questions
- Curiosity Class 7 Science Chapter 10 Life Processes in Plants Case Study Questions
- Curiosity Class 7 Science Chapter 9 Life Processes in Animals Case Study Questions
- Curiosity Class 7 Science Chapter 8 Measurement of Time and Motion Case Study Questions
- Curiosity Class 7 Science Chapter 7 Heat Transfer in Nature Case Study Questions
- Curiosity Class 7 Science Chapter 6 Adolescence: A Stage of Growth and Change Case Study Questions
- Curiosity Class 7 Science Chapter 5 Changes Around Us: Physical and Chemical Case Study Questions
- Curiosity Class 7 Science Chapter 4 The World of Metals and Non-metals Case Study Questions
- Curiosity Class 7 Science Chapter 3 Electricity: Circuits and their Components Case Study Questions
- Curiosity Class 7 Science Chapter 2 Exploring Substances: Acidic, Basic, and Neutral Case Study Questions
- Curiosity Class 7 Science Chapter 1 The Ever-Evolving World of Science Case Study Questions
🚀 Boost Your Exam Prep: Get case study questions for all subjects (Class 6-12) now!
👉 Explore more resources on CBSE Class 7
Topics from which case study questions may be asked
- Electric cell
- Series and parallel circuits
- Conductors and insulators
Understanding circuits helps us design and fix electronic gadgets.
Frequently Asked Questions (FAQs) on Electricity: Circuits and their Components Case Study Questions
Q1: What are case study questions in Electricity: Circuits and their Components?
A1: These are competency-based questions based on real-life situations and concepts from Electricity: Circuits and their Components.
Q2: Are case study questions part of Class 7 Science CBSE exams?
A2: Yes, CBSE includes such questions in line with NEP guidelines.
Q3: How can I practice Class 7 case study questions?
A3: Practice from chapterwise question banks and NCERT-integrated sources.
Q4: Are answers provided for Electricity: Circuits and their Components case study questions?
A4: Yes, each case study question includes an answer.
Q5: Are there any online resources or tools available for practicing class 7 science curiosity “Electricity: Circuits and their Components” case study questions?
A5: We provide case study questions for CBSE Class 7 Science Curiosity on our website. Students can visit the website and practice sufficient case study questions and prepare for their exams. If you need more case study questions, then you can visit Physics Gurukul website. they are having a large collection of case study questions for all classes.
