|
Size: 1582
Comment:
|
Size: 1956
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 18: | Line 18: |
| ||An iron ring tripod and a screen||location||<:> NA || | |
| Line 24: | 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 gas tube with the gas source. 1. Make sure that you have the gas switch off and in the right pressure that you want before you turn it on. |
| Line 35: | Line 35: |
| This demonstration show the thermal expansion property of the material. | This demonstration show the thermal expansion property of the material which is the tendency of matter to change volume corresponding to the temperature changes. 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. |
| Line 42: | Line 45: |
| - | 1. [http://en.wikipedia.org/wiki/Thermal_expansion Wikipedia] |
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 gas tube with the gas source.
- Make sure that you have the gas switch off and in the right pressure that you want before you turn it on.
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]