Ball and ring apparatus
Product Code : SCL-MH-12787
The Ball
and Ring Apparatus by Educational Instrument India is
a simple and effective physics laboratory apparatus designed to demonstrate the
thermal expansion of solids. It is widely used in school physics laboratories,
college laboratories, STEM classrooms, and science demonstration setups to help
students understand how metals expand when heated and contract when cooled.
The apparatus
consists of a metal ball and a matching metal ring. At room temperature, the
ball can pass through the ring easily. When the ball is heated, it expands and
no longer passes through the ring, clearly demonstrating the concept of
expansion due to heat. After cooling, the ball contracts and can again pass
through the ring.
This apparatus
provides a clear visual demonstration of thermal expansion, making it an
excellent teaching aid for topics related to heat, temperature, expansion,
contraction, and physical properties of solids.
Key Features
Demonstrates
thermal expansion of solids
Simple and
easy-to-understand classroom apparatus
Includes metal ball
and matching ring
Shows expansion on
heating and contraction on cooling
Ideal for heat and
temperature experiments
Suitable for
schools, colleges, STEM labs, and science classrooms
Durable
construction for repeated laboratory use
Helps students
learn through practical observation
Product Specifications
|
Specification |
Details |
|
Product Name |
Ball and Ring
Apparatus |
|
Brand |
Educational
Instrument India |
|
Application |
Demonstration of
thermal expansion of solids |
|
Use |
Physics
laboratory experiments and classroom demonstrations |
|
Concepts Covered |
Heat,
temperature, expansion, contraction, thermal expansion of metals |
|
Components |
Metal ball, metal
ring, handle/support depending on model |
|
Material |
Laboratory-grade
metal components |
|
Operation |
Manual heating
and cooling demonstration |
|
Suitable For |
Schools,
colleges, STEM laboratories, and training institutes |
|
Category |
Physics
Laboratory Equipment |
|
Recommended Usage |
Under teacher or
laboratory instructor supervision |
How to Use Ball and Ring Apparatus
Place the Ball and
Ring Apparatus on a stable laboratory table.
At room
temperature, pass the metal ball through the ring to show that it fits easily.
Heat the metal ball
carefully using a suitable laboratory heat source.
After heating, try
to pass the ball through the ring again.
Observe that the
heated ball does not pass through the ring due to thermal expansion.
Allow the ball to
cool naturally or cool it carefully as instructed by the teacher.
Once cooled, pass
the ball through the ring again to show contraction.
Explain how solids
expand on heating and contract on
