Answer
A long pendulum takes a relatively long time to swing to and fro, and thus has a longer period than a short pendulum.
Work Step by Step
This is discussed on page 358.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.