|
Size: 1789
Comment:
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Size: 1834
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 25: | Line 25: |
| 1. First, show students that the ball can get through the ring. 1. Heat the ball by the burner. It may take a lot of time, so just put it on the iron ring tripod and heat it. 1. Then Put the ball over the ring. This time the ball should cannot get through the ring. |
1. Install the burner with the gas source. |
| Line 37: | Line 35: |
| 1. First, show students that the ball can get through the ring. 1. Heat the ball by the burner. It may take a lot of time, so just put it on the iron ring tripod and heat it. 1. Then Put the ball over the ring. This time the ball should cannot get through the ring. |
Large Ball and Ring Stand , 4A30.20
Location:
Cabinet: Thermodynamics Cabinet
Bay: (A3)
Shelf: #1
attachment:4A30-20_01.jpg
Description:
This demonstration has a ball and ring with stand. It demonstrates the thermal expansion of the material by heating the ball.
Equipment |
Location |
ID Number |
|
|
|
A ring with stand and a ball with hanger |
[:ThermoCabinetBayA3: TD, A3, Shelf #1] |
4A30.20 |
Burner with an iron ring tripod and wire net screen |
location |
NA |
An iron ring tripod and a screen |
location |
NA |
Safety grove and glasses |
location |
NA |
Setup:
- Make sure that you have all apparatus in above table.
- Install the burner with the gas source.
Cautions, Warnings, or Safety Concerns:
- Use caution with the burner.
- Wear safety glasses and grove for your safety.
Demonstration:
This demonstration show the thermal expansion property of the material which is the tendency of matter to change volume corresponding to the temperature changes.
- First, show students that the ball can get through the ring.
- Heat the ball by the burner. It may take a lot of time, so just put it on the iron ring tripod and heat it.
- Then Put the ball over the ring. This time the ball should cannot get through the ring.
attachment:4A30-20_01a.jpg |
attachment:4A30-20_02a.jpg |
attachment other photos |
attachment other photos |
References:
[http://en.wikipedia.org/wiki/Thermal_expansion Wikipedia]
[:ThermalProperties:Thermal Properties of Matter]
[:Demonstrations:Demonstrations]
[:Instructional:Home]