Method:
1. Set up and light a Bunsen burner
2. Smear a small amount of petroleum jelly on to the head of each drawing pin
3. Attach the drawing pins at even intervals along the length of the metal rod
4. Clamp one end to the metal rod to a retort stand
5. Position the retort stand so the unclamped end of the metal rod is in the Bunsen burner flame ans start the stopwatch
6. Record the time it takes for each pin to drop in the table below.
Discussion:
When we heated one side of the metal it started vibrating along the ling of pins. The Vibration was coming from the strong particles that are along the line of pins. After it would be transferred all the way to the end which made all of the pins fall down.
Results:
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