Simple Machines
Q.1. Why did man invent machines?
Q.2. What is work in Science?
Q.3. What is a machine?
Q.4. Name some simple Machines.
Q.5. Name the basic types of simple machines.
Q.6. How is an inclined plane useful?
Q.7. What is an inclined plane?
Q.8. What is a wedge?
Q.9. How is a wedge helpful to us?
Q.10. Give an example of wedge.
Q.11. What is a lever?
Q.12. What is the fixed point of a lever called?
Q.13. What is a wheel and axle?
Q.14. Give an example of a wheel and axle.
Q.15. What is a screw?
Q.16. How is a screw helpful to us?
Q.17. Give an example of a screw.
Q.18. What is a pulley?
Q.19. How is pulley helpful to us?
Q.20. Give an example of a pulley.
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