Ball and Hoop

The video tutorial explores the effects of heating and cooling on a brass ball and hoop. Initially, the ball fits through the hoop at room temperature. When heated, the ball expands due to increased kinetic energy, preventing it from passing through the hoop. Upon cooling, the ball contracts and fits through again. This demonstrates thermal expansion and contraction. The tutorial also discusses real-world implications, such as thermal expansion joints in bridges to prevent structural damage.

How does thermal expansion affect structures like bridges in hotter climates?

What is the purpose of thermal expansion joints in bridges?

Describe the process that occurs when the temperature rises in metal structures.