Today you’ll be investigating pendulums using the PhET Pendulum Lab.

Answer the following questions on paper and turn in at the end of class.

1. Play with the Pendulum Lab to figure out what variables affect the motion of a pendulum and write qualitative descriptions for each variable.  Ex: “Increasing the mass does…”
2. Design experiments to find the best equation for the relationship between the length of the pendulum and period. Include a table and graph of your data, or make a spreadsheet and chart with a trendline in Google Sheets.
3. Design experiments to find the best equation for the relationship between the angle the pendulum was released from and period. Include a table and graph of your data, or make a spreadsheet and chart with a trendline in Google Sheets.
4. Using what you know about Potential and Kinetic Energy, create an equation that attempts to calculate the velocity of the pendulum at the bottom of it’s swing as a function of:
   1. Angle that it was released from and
   2. Pendulum length.

      Remember, PE initial =KE final!

You may work with a small group, but everyone must turn in a paper!