Tools to Machines
Q.1. From which material prehistoric man made tools?
Q.2. Prehistoric man used simple tools and weapons for which purpose?
Q.3. Which was the first metal to be used?
Q.4. Which metal could be used to make strong and durable tools?
Q.5. When was the steam engine invented and in which year?
Q.6. What was the beginning of the machine age?
Q.7. Who invented the railway engine and in which year?
Q.8. What was the name of the first railway engine?
Q.9. Who invented the first successful railway engine and in which year?
Q.10. What was the name of the first successful railway engine?
Q.11. What is called mass production?
Q.12. What led to the beginning of the factory system?
Q.13. What was the Industrial Revolution?
Q.14. Which powerful sources of energy were used in the Industrial Revolution?
Q.15. Which was the first fuel to be used in the Machines?
Q.16. Where is coal found and how it is obtained?
Q.17. What are the uses of coal?
Q.18. Where was petroleum discovered and in which year?
Q.19. What do we get after refining petrol?
Q.20. Who invented an engine which could run on petrol and in which year?
Q.21. Who invented the engine that could run on diesel?
Q.22. Where is diesel used and why?
Q.23. What is electricity produced from water called?
Q.24. How is hydroelectricity produced?
Q.25. Who discovered electricity?
Q.26. Who invented the battery?
Q.27. Name some non-renewable sources of energy.
Q.28. Name some non conventional sources of energy.
Q.29. Where is the nuclear power station situated in India?
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