NCERT Class 9 Skill Education Kaushal Vikas: Chapter 5 — Work with Machines and Materials
This chapter, 'Work with Machines and Materials,' from NCERT Class 9 Skill Education's Kaushal Vikas book, explores the fundamental link between human progress and the use of materials and machines. It highlights how understanding material characteristics, tools, and processes is crucial for transforming natural resources into useful products. The chapter references ancient Indian craftsmanship, such as the Iron Pillar of Delhi and Ellora caves, as examples of deep material knowledge. It also discusses modern technological advancements like 'smart systems' in helmets and vests that enhance worker safety by monitoring vital signs and warning of potential accidents. The text emphasizes that despite technological evolution, the core principles of selecting appropriate materials, using correct processes, and handling tools safely remain essential for efficient and precise production.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 9 |
| Subject | Skill Education |
| Book | Kaushal Vikas |
| Chapter | Chapter 5 — Work with Machines and Materials |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 319 |
Learning outcomes
- Understand the historical and ongoing relationship between human progress, materials, and machines.
- Identify key principles in working with materials and machines, including material characteristics and processes.
- Appreciate the significance of ancient Indian craftsmanship in material science and technology.
- Recognize the role of modern technology and 'smart systems' in enhancing worker safety and efficiency.
- Apply basic principles of material selection, process usage, and safe tool handling.
Vocabulary
| Word | Meaning |
|---|---|
| Craftsmanship | Skill in a particular craft or trade. |
| Transform | Change in form, appearance, or character. |
| Characteristics | Features or qualities belonging typically to a person, place, or thing. |
| Automation | The use of technology to perform tasks with minimal human assistance. |
| Efficiency | The state or quality of being efficient; achieving maximum productivity with minimum wasted effort or expense. |
| Principles | A fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning. |
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Practice questions
- How has human progress been linked to machines and materials? Answer: Human progress has been closely linked to our ability to use materials and build machines, transforming raw materials into useful products.
- What does 'working with machines and materials' involve? Answer: It involves understanding the characteristics of materials and the tools and processes used to shape them.
- Give an example of ancient Indian craftsmanship mentioned in the text. Answer: Examples include the Iron Pillar of Delhi and the rock-cut caves of Ellora.
- How do 'smart systems' help protect workers today? Answer: Smart systems, like smart helmets and vests, are equipped with sensors that monitor vital signs and posture, warning workers of potential accidents.
- What are the basic principles that remain the same in making things, despite technological advances? Answer: The basic principles are selecting the right material based on its properties, using the right process, and handling tools and machines safely and skilfully.
Frequently asked questions
What is the main theme of NCERT Class 9 Skill Education Chapter 5?
The chapter focuses on the relationship between human progress, the use of materials, and the development of machines, covering historical context, modern applications, and safety.
What are some examples of ancient Indian craftsmanship mentioned?
The chapter mentions the Iron Pillar of Delhi and the rock-cut caves of Ellora as examples of deep understanding of materials and techniques.
How does technology improve worker safety according to the chapter?
Technology improves safety through 'smart systems' like helmets and vests equipped with sensors that monitor health and warn of dangers, and by taking over hazardous jobs.
What are the fundamental principles for making things efficiently?
The fundamental principles include selecting the right material based on its properties, using the correct process, and handling tools and machines safely and skilfully.
What is the significance of 'smart systems' in modern industries?
Smart systems enhance efficiency and protect workers by monitoring their condition and warning them of potential accidents or dangerous situations.
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Topics covered
NCERT Class 9 Skill Education — Kaushal Vikas — Chapter 5 — Work with Machines and Materials. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.