Conduction is a term used to describe the flow of heat through an. Objects that are good at conducting heat are called thermal conductors. Metals are thermal conductors, but plastics, fur wool, and gases are usually poor thermal conductors. Poor thermal conductors are called thermal insulators.
Aim: To observe conduction along a metal rod.
Equipment: A metal rod, retort stand and clamp, bunsen burner, petroleum jelly, 5-10 drawing pins, a stopwatch.
Method 1.Set up and light a Busen burner.
2. Smear a small amount of petroleum jelly on to the head of each drawing pins, a stopwatch.
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 a metal rod is in the Busen flame and start the stopwatch
6.Record the time it takes for each pin to drop in the table below.
Pin Number Time to drop (s)
1 1 min 13 sec
2 4min 24 sec
3 6 min 25 sec
4 8 min 24 sec
5 10 min 31 sec
No comments:
Post a Comment
To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Thoughtful - A sentence to let us know you actually read/watched or listened to what I had to say
3. Something thoughtful - how have you connected with my learning? Give me some ideas for next time or ask me a question.
Note: only a member of this blog may post a comment.