Large Ball and Ring Stand , 4A30.20

Location:

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:

  1. Make sure that you have all apparatus in above table.
  2. Install the burner with the gas source.

Cautions, Warnings, or Safety Concerns:

  1. Use caution with the burner.
  2. 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.

  1. First, show students that the ball can get through the ring.
  2. 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.
  3. 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:

  1. [http://en.wikipedia.org/wiki/Thermal_expansion Wikipedia]

[:ThermalProperties:Thermal Properties of Matter]

[:Demonstrations:Demonstrations]

[:Instructional:Home]