LAB

What’s a Pendulum?

A wave that stays in the same place!

A Pendulum Compared to a Wave Crest Trough Wave

Questions to Answer in this Lab… How does the length of the pendulum affect the time (period) of it’s swing (cycle)? How does the mass of the pendulum affect the period of it’s cycle? How does the angle of the pendulum affect the period of it’s cycle?

1 2 3 4 5 The Effect of Length on the Period of the Pendulum Trial Hypothesis: “We think __________________________” Trial Length (cm) Time (s) Average 1 Average 2 Average 3 Average 4 Average 5

1 2 3 4 5 The Effect of Mass on the Period of the Pendulum Trial Hypothesis: “We think __________________________” Trial # of washers Time (s) Average 1 Average 2 Average 3 Average 4 Average 5 *** Each washer has a mass of 4-grams

1 2 3 4 5 The Effect of Angle on the Period of the Pendulum Trial Hypothesis: “We think __________________________” Trial Angle (degrees) Time (s) Average 1 Average 2 Average 3 Average 4 Average 5

Names Date Class Pendulum Lab (5) Problem: (What questions do we answer by doing this lab?) (5) Research: (What is already known about this topic?) (5) Hypothesis: (Your best guess on what you think the cause & effect will be (Three “We think…” statements) Materials: (A specific list of all the materials you used for this lab) (5) Method: (A step-by-step list of instructions on how to do each part of the lab) Step 1 – Step 2 – *** Include as many steps as necessary… (5) Data: Graphs go here. Do NOT interpret data in this section. (15) Analysis: (Paragraph style. Include the following: • Brief discussion of a pendulum is and why we did this lab. • Written explanation of your data/confirm or deny your hypothesis • Any conclusions that you can make (cause & effect) • Real-life applications of this topic • Possible sources of error • Future recommendations/changes in this lab • Any interesting additional studies you could do related to pendulums?