Charge
Electricity and Magnetism

Static UFO

Enrichment Activity for 5-11 11-14

What you need

  • Very thin strands of tinsel, about 15cm long
  • Balloon

Instructions

  1. Tie six strands of tinsel together with a knot at each end and cut any loose ends off close to the knots
  2. Rub the inflated balloon against your hair or jumper and hold the tinsel above the balloon by one of the knots. Drop the tinsel

Results and Explanation

The tinsel will touch the balloon, be repelled and start floating! Use the balloon to direct where it goes. If your UFO won’t fly, try again with thinner tinsel or on a very dry day.



Rubbing the balloon makes it negatively charged and the tinsel is attracted to it. When the tinsel hits the balloon, it picks up some of the negative charge and is repelled away.

These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.

Charge
can be determined for a Positron Muon Tau W Boson Z Boson Proton Quark
can be determined for an Electron Antitau Antimuon Antiquark
is used in analyses relating to Ionisation
IOP AWARDS 2025

Teachers of Physics Awards

The Teachers of Physics Award celebrates the success of secondary school physics teachers who have raised the profile of physics and science in schools. Nominations for 2025 are now open.

Start your nomination now