3. Screws (holds parts together) Pendulum (counts seconds and helps drive the inner mechanism) Gears (drive the hands of the clock) Hands of the clock (small hand counts every hour, big hand counts every minute) Labeled time intervals (big numbers count 12 hours all the way around, five numbers in between each big one counts 60 minutes all the way around) Springs (drives the gear trains)

4. Mechanical (gears and springs) Kinetic (gear train movement) Kinetic (pendulum swing) Kinetic (ticking hands)

5. Gears (Wheel and axle) Screw Hands (lever) Pendulum (lever)

6. The two forces acting on the clock are friction(the gear train) and gravity( the movement of the pendulum) Friction Gravity Normal F riction Effort force Friction

8.  One way to improve the mechanical clock is to decrease the amount of friction within the inner mechanisms  Another improvement would be to make the clock eco-friendly by creating the parts out of biodegradable and recyclable materials.