Week 4 Lab/Lecture

Week 4 Lab/Lecture

The big question addressed in lab, and a description of what you did?

The big question discussed was 'What affects how long it takes a swing to go back and forth?'
My group and I attached a wooden stick to our table and tied a string. We attached washers and measured the time they swung back and forth. After three trials we shortened the string. We had three sets of trials for each set of length of string.

Description of what we did in the lab?

My group chose to ask the question 'How does the length of string affect how long it takes a swing to go back and forth?'
Our hypothesis was 'If the string is short then it take a shorter time to go back and forth.'
We discovered that with the shorter string, it swings faster. The longer the strong the slower it swings.

A description of what you learned in Thursday's lecture.

Weight does not matter when it comes to a swing period. The swing period does depend on the length.
Swings eventually slow down because the pendulum collides with air particles and slows it down. There is a transfer of energy.

Answer questions about the weekly textbook reading:

What did you learn?

The definition of a pendulum is ' a weight suspended from a fixed point that can swing freely.'

What was most helpful?

The videos show pendulums and also kinetic and potential energy.

Comments

Week 6

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Kallea Christy

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