Answer the following questions:

1. Name six types of springs.

2. Name three types of gears.

3. State Hooke's law.

4. Give the relation for potential energy in terms of spring constant.

5. Name three types of weighing scales.

6. What is meant by a spring constant?

7. Define the pressure angle for a pair of mating gears.

8. What is meant by diametral pitch for a gear?

9. What is meant by mechanical advantage?

10. How is weighing scale calibrated? What is the need for calibration?

11. What is the principle used in common weighing scales?

12. Explain how the weighing scale you have dissected works.

13. Sketch free-hand an alternative design for the artifact.

14. Write a one-page essay about how your design works.

15. Select one part from your design or the artifact and draw using AutoCAD with dimensions.