Hot Air Balloons

Hot air balloons rely on heat alone to keep them in the sky. How does this work?

Physics - Energy And Radioactivity - Learning Points.

Hot air rises in cool air because it is less dense.

The hot air within a hot air balloon creates the lift needed to fly.

Lift is known as the buoyant force.

The buoyant force of the hot air balloon needs to be greater than the downward force of weight in order to rise.

A Twig Context Film.
Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.