 Practice Problems Frequency and Period #2

Directions: On this worksheet you will examine properties of a simple pendulum, vibration graphs, and graphs of Period2 vs Length. omit
Question 1  During an experiment, data is collected on the vibrations of a simple pendulum. A graph of Period2 vs Length is plotted and forms a linear graph with a slope of 4.2 and a y-axis intercept of 0.15. Use the fact that the numerical value of the slope represents 4π2/g to determine the value of gravity in the lab room. omit
Question 2  If the accepted value for gravity at sea level is 9.8 m/sec2, what was the percent error for this group's experiment? omit
Question 3  According to the data summarized by the group's regression line in Question #1, determine the frequency of a pendulum that was 100 cm long? omit
Question 4  How would the period of a 60 cm pendulum compare to the period of the pendulum in Question #3? omit
Question 5  What is meant by the term pendulum bob? omit
Question 6  What would be the correct units to measure the slope of the regression line described in Question #1? omit
Question 7  What is the frequency of a pendulum whose vibration graph is shown below if its 1st trough occured at 8.75 seconds and its last trough occured at 49.75 seconds .  omit
Question 8  Using the equation T = 2p SQRT(L/g) what would be the length of the pendulum in Question #7?