Fc-1 Ping Pong Ball in Air Stream

Aim

To Demonstrate how airflow can cause flotation.

Apparatus

  • Ping pong ball
  • Vacuum cleaner blower
  • Variac

Ping Pong Ball in Air Stream 1 Ping Pong Ball in Air Stream 2Ping Pong Ball Diagram

Ping Pong Ball in Air Stream and Diagram.

Description

The ping pong ball is carefully released into the vertical air stream obtained from the outlet end of a vacuum cleaner at a distance of approximately 30 cm from the hose. By slowly tilting the hose outlet the ball can remain suspended to an angle of about 30°.

It is also fun to replace the ping pong ball with a large light beach ball or large balloon. The distances are magnified and the spinning ball is visually appealing.