School of Physics Lecture Demonstration Manual

Fc-6 Attraction of two balls

Published: Monday 13 March 2006 - Updated: Tuesday 29 March 2011

Aim

To Demonstrate how pressure difference can cause attraction.

Apparatus

Diagrams

Click on pictures to enlarge.

Attraction of Two Balls Pic 1

Attraction of Two Balls Pic 2

Videos

Attraction of Two Balls

Description

The blower is aimed at the space between the two balls. The blower is connected to the variac and slowly brought up to full power. The pressure between th balls is reduced and they are subsequently " attracted".

Safety notes

Electrical safety 

Maintenance 

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