To observer conduction along a metal rod.
Equipment:
A metal, Retort stand and clamp, Bunsen Burner, petroleum jelly, 5-10 drawing pins, a stopwatch.
Method:
1. Set up and light a bunsen burner.
2. Smear a small amount of petroleum jelly on the head of each drawing pins.
3. Attach the drawing pins at even intervals along the length of the metal rod.
4. Clamp one end of the metal rod to a retort stand.
5. Position the retort stand so the unclamped end of the metal rod is in the bunsen flame and start the stopwatch.
6. Record the time it takes for the each pin to drop in the table below.
Results:
Pin Number
|
Time to drop (s)
|
Pin 1
|
8.63
|
Pin 2
|
43.68
|
Pin 3
|
1:00.89
|
Pin 4
|
2:10.03
|
Discussion:
This is how each pins drop. The first pin was the closest to the heat so It falls off first. A solid has a small gaps between their particles so the movement is vibrating. The vibrating transfer to each particles until it reaches the last pin.
No comments:
Post a Comment
Please structure your comments as follows:
Positive - Something done well.
Thoughtful - A sentence to let us know you actually read/watched or listened to what they had to say.
Helpful - Give some ideas for next time or Ask a question you want to know more about.
Note: only a member of this blog may post a comment.