# Physics lab questions

**Question description**

4.4 Give 2 reasons that 1/60 s time intervals give good results in this experiment. Hint: a useful technique is to consider extreme values, say 1s, and of .000001s.

4.5 What tables will you need to summarize and compare your data at the end? You will
need to summarize each measurement of g, its uncertainty (if available), its fractional
deviation and t value difference (if available) from the expected value.

4.6 How should you determine which point to start with and which point to end with?
(When plotting and fitting your data later, you may need to remove some data, or learn
Kgraph’s data selection tools).

4.7 Are the uncertainties of successive values of yi independent? Why or why not?

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