Inference: The period of swing of a pendulum depends on the length of the string.

Hypothesis: The longer the string of the pendulum, the longer the period of oscillation.

Predict : What would happen to the value of g if pendulum is swing with a large amplitude? 

DISCUSSION

1. Why should the time for 10 complete oscillations be taken in this experiment?

2. Why does the time measurement of 10 oscillations need to be repeated?

3. Use the simulator, does the period of a pendulum depends on mass? 

4. Use the simulator, determine the gravitational acceleration of Planet X.

5. Use the simulator, does the period of a pendulum depends on gravity? 

6. Compare the value of g from this experiment with the standard value of g, which is 9.81 m s–2. Give your justification for the difference in value obtained.

7. If this experiment were carried out on the surface of the Moon, what would the probability be happen to the slope of the graph?

8. What conclusions can be drawn from this experiment?